3403931 has 4 divisors (see below), whose sum is σ = 3551952. Its totient is φ = 3255912.

The previous prime is 3403921. The next prime is 3403937. The reversal of 3403931 is 1393043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3403931 is a prime.

It is a super-2 number, since 2×3403931² = 23173492505522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 147997 = 3403931 / (3 + 4 + 0 + 3 + 9 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3403897 and 3403906.

It is not an unprimeable number, because it can be changed into a prime (3403937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73976 + ... + 74021.

It is an arithmetic number, because the mean of its divisors is an integer number (887988).

Almost surely, 2^3403931 is an apocalyptic number.

3403931 is a deficient number, since it is larger than the sum of its proper divisors (148021).

3403931 is a wasteful number, since it uses less digits than its factorization.

3403931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148020.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 3403931 is about 1844.9745255694. The cubic root of 3403931 is about 150.4273885113.

Adding to 3403931 its reverse (1393043), we get a palindrome (4796974).

It can be divided in two parts, 3403 and 931, that added together give a palindrome (4334).

The spelling of 3403931 in words is "three million, four hundred three thousand, nine hundred thirty-one".