3957634 has 16 divisors (see below), whose sum is σ = 6434208. Its totient is φ = 1818432.

The previous prime is 3957571. The next prime is 3957637. The reversal of 3957634 is 4367593.

It is a junction number, because it is equal to n+sod(n) for n = 3957593 and 3957602.

It is not an unprimeable number, because it can be changed into a prime (3957637) 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, 109 + ... + 2815.

It is an arithmetic number, because the mean of its divisors is an integer number (402138).

Almost surely, 2^3957634 is an apocalyptic number.

3957634 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3957634 is a deficient number, since it is larger than the sum of its proper divisors (2476574).

3957634 is a wasteful number, since it uses less digits than its factorization.

3957634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769.

The product of its digits is 68040, while the sum is 37.

The square root of 3957634 is about 1989.3803055223. The cubic root of 3957634 is about 158.1776829252.

The spelling of 3957634 in words is "three million, nine hundred fifty-seven thousand, six hundred thirty-four".