3943401 has 32 divisors (see below), whose sum is σ = 6724608. Its totient is φ = 1995840.

The previous prime is 3943399. The next prime is 3943403. The reversal of 3943401 is 1043493.

It is an interprime number because it is at equal distance from previous prime (3943399) and next prime (3943403).

It is not a de Polignac number, because 3943401 - 2¹ = 3943399 is a prime.

It is a super-2 number, since 2×3943401² = 31100822893602, which contains 22 as substring.

3943401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3943403) 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 31 ways as a sum of consecutive naturals, for example, 9735 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (210144).

Almost surely, 2^3943401 is an apocalyptic number.

It is an amenable number.

3943401 is a deficient number, since it is larger than the sum of its proper divisors (2781207).

3943401 is a wasteful number, since it uses less digits than its factorization.

3943401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3943401 is about 1985.7998388559. The cubic root of 3943401 is about 157.9878348803.

Adding to 3943401 its reverse (1043493), we get a palindrome (4986894).

The spelling of 3943401 in words is "three million, nine hundred forty-three thousand, four hundred one".