3984957 has 36 divisors (see below), whose sum is σ = 6441344. Its totient is φ = 2459160.

The previous prime is 3984949. The next prime is 3984971. The reversal of 3984957 is 7594893.

It is not a de Polignac number, because 3984957 - 2³ = 3984949 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984917) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128532 + ... + 128562.

Almost surely, 2^3984957 is an apocalyptic number.

It is an amenable number.

3984957 is a deficient number, since it is larger than the sum of its proper divisors (2456387).

3984957 is an equidigital number, since it uses as much as digits as its factorization.

3984957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 57 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3984957 is about 1996.2357075255. The cubic root of 3984957 is about 158.5408612686.

The spelling of 3984957 in words is "three million, nine hundred eighty-four thousand, nine hundred fifty-seven".