3915556 has 12 divisors (see below), whose sum is σ = 6939520. Its totient is φ = 1932840.

The previous prime is 3915553. The next prime is 3915557. The reversal of 3915556 is 6555193.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3915553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5880 + ... + 6511.

Almost surely, 2^3915556 is an apocalyptic number.

It is an amenable number.

3915556 is a deficient number, since it is larger than the sum of its proper divisors (3023964).

3915556 is a wasteful number, since it uses less digits than its factorization.

3915556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12474 (or 12472 counting only the distinct ones).

The product of its digits is 20250, while the sum is 34.

The square root of 3915556 is about 1978.7763895903. The cubic root of 3915556 is about 157.6150968557.

The spelling of 3915556 in words is "three million, nine hundred fifteen thousand, five hundred fifty-six".