3916557 has 18 divisors (see below), whose sum is σ = 5809518. Its totient is φ = 2542512.

The previous prime is 3916543. The next prime is 3916609. The reversal of 3916557 is 7556193.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3896676 + 19881 = 1974^2 + 141^2 .

It is not a de Polignac number, because 3916557 - 2⁸ = 3916301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3916057) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19783 + ... + 19979.

It is an arithmetic number, because the mean of its divisors is an integer number (322751).

Almost surely, 2^3916557 is an apocalyptic number.

It is an amenable number.

3916557 is a deficient number, since it is larger than the sum of its proper divisors (1892961).

3916557 is a wasteful number, since it uses less digits than its factorization.

3916557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 247 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 3916557 is about 1979.0293075142. The cubic root of 3916557 is about 157.6285269850.

The spelling of 3916557 in words is "three million, nine hundred sixteen thousand, five hundred fifty-seven".