78976337 has 18 divisors (see below), whose sum is σ = 89126226. Its totient is φ = 69928320.

The previous prime is 78976297. The next prime is 78976349. The reversal of 78976337 is 73367987.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 14318656 = 8041^2 + 3784^2 .

It is not a de Polignac number, because 78976337 - 2⁸ = 78976081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78972337) 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, 223553 + ... + 223905.

It is an arithmetic number, because the mean of its divisors is an integer number (4951457).

Almost surely, 2^78976337 is an apocalyptic number.

It is an amenable number.

78976337 is a deficient number, since it is larger than the sum of its proper divisors (10149889).

78976337 is a wasteful number, since it uses less digits than its factorization.

78976337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 407 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 50.

The square root of 78976337 is about 8886.8631698705. The cubic root of 78976337 is about 429.0411970080.

The spelling of 78976337 in words is "seventy-eight million, nine hundred seventy-six thousand, three hundred thirty-seven".