78606516 has 24 divisors (see below), whose sum is σ = 183667680. Its totient is φ = 26166112.

The previous prime is 78606503. The next prime is 78606527. The reversal of 78606516 is 61560687.

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, 5455 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (7652820).

Almost surely, 2^78606516 is an apocalyptic number.

It is an amenable number.

78606516 is an abundant number, since it is smaller than the sum of its proper divisors (105061164).

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

78606516 is a wasteful number, since it uses less digits than its factorization.

78606516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 78606516 is about 8866.0315812657. The cubic root of 78606516 is about 428.3704612685.

The spelling of 78606516 in words is "seventy-eight million, six hundred six thousand, five hundred sixteen".