78765952 has 32 divisors (see below), whose sum is σ = 157339080. Its totient is φ = 39277056.

The previous prime is 78765931. The next prime is 78765959. The reversal of 78765952 is 25956787.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 78765896 and 78765905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78765959) by changing a digit.

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, 71518 + ... + 72610.

Almost surely, 2^78765952 is an apocalyptic number.

It is an amenable number.

78765952 is a deficient number, since it is larger than the sum of its proper divisors (78573128).

78765952 is a wasteful number, since it uses less digits than its factorization.

78765952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1658 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 49.

The square root of 78765952 is about 8875.0184225161. The cubic root of 78765952 is about 428.6598840488.

The spelling of 78765952 in words is "seventy-eight million, seven hundred sixty-five thousand, nine hundred fifty-two".