78886552 has 8 divisors (see below), whose sum is σ = 147912300. Its totient is φ = 39443272.

The previous prime is 78886547. The next prime is 78886589. The reversal of 78886552 is 25568887.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 78886496 and 78886505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4930402 + ... + 4930417.

Almost surely, 2^78886552 is an apocalyptic number.

It is an amenable number.

78886552 is a deficient number, since it is larger than the sum of its proper divisors (69025748).

78886552 is a wasteful number, since it uses less digits than its factorization.

78886552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860825 (or 9860821 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 78886552 is about 8881.8101758594. The cubic root of 78886552 is about 428.8785488343.

The spelling of 78886552 in words is "seventy-eight million, eight hundred eighty-six thousand, five hundred fifty-two".