3918057 has 16 divisors (see below), whose sum is σ = 6138048. Its totient is φ = 2191680.

The previous prime is 3918053. The next prime is 3918067. The reversal of 3918057 is 7508193.

It is not a de Polignac number, because 3918057 - 2² = 3918053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

3918057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3918053) 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 15 ways as a sum of consecutive naturals, for example, 4138 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (383628).

Almost surely, 2^3918057 is an apocalyptic number.

It is an amenable number.

3918057 is a deficient number, since it is larger than the sum of its proper divisors (2219991).

3918057 is a wasteful number, since it uses less digits than its factorization.

3918057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 3918057 is about 1979.4082449055. The cubic root of 3918057 is about 157.6486477706.

It can be divided in two parts, 391 and 8057, that added together give a palindrome (8448).

The spelling of 3918057 in words is "three million, nine hundred eighteen thousand, fifty-seven".