78615332 has 12 divisors (see below), whose sum is σ = 138027120. Its totient is φ = 39179016.

The previous prime is 78615307. The next prime is 78615347. The reversal of 78615332 is 23351687.

It is a junction number, because it is equal to n+sod(n) for n = 78615292 and 78615301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30782 + ... + 33237.

It is an arithmetic number, because the mean of its divisors is an integer number (11502260).

Almost surely, 2^78615332 is an apocalyptic number.

It is an amenable number.

78615332 is a deficient number, since it is larger than the sum of its proper divisors (59411788).

78615332 is a wasteful number, since it uses less digits than its factorization.

78615332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64330 (or 64328 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 78615332 is about 8866.5287457945. The cubic root of 78615332 is about 428.3864750928.

The spelling of 78615332 in words is "seventy-eight million, six hundred fifteen thousand, three hundred thirty-two".