2978616 has 32 divisors (see below), whose sum is σ = 7545600. Its totient is φ = 979680.

The previous prime is 2978593. The next prime is 2978627. The reversal of 2978616 is 6168792.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 2681.

It is an arithmetic number, because the mean of its divisors is an integer number (235800).

2^2978616 is an apocalyptic number.

It is an amenable number.

2978616 is an abundant number, since it is smaller than the sum of its proper divisors (4566984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2978616 is a wasteful number, since it uses less digits than its factorization.

2978616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1655 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 2978616 is about 1725.8667387721. The cubic root of 2978616 is about 143.8814610891.

The spelling of 2978616 in words is "two million, nine hundred seventy-eight thousand, six hundred sixteen".