3491431 has 8 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 3372768.

The previous prime is 3491429. The next prime is 3491441. The reversal of 3491431 is 1341943.

3491431 = 289² + 290² + ... + 325².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3491431 - 2¹ = 3491429 is a prime.

It is a super-2 number, since 2×3491431² = 24380180855522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3491396 and 3491405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7050 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (451440).

Almost surely, 2^3491431 is an apocalyptic number.

3491431 is a deficient number, since it is larger than the sum of its proper divisors (120089).

3491431 is a wasteful number, since it uses less digits than its factorization.

3491431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its digits is 1296, while the sum is 25.

The square root of 3491431 is about 1868.5371283440. The cubic root of 3491431 is about 151.7054400459.

The spelling of 3491431 in words is "three million, four hundred ninety-one thousand, four hundred thirty-one".