78888652 has 6 divisors (see below), whose sum is σ = 138055148. Its totient is φ = 39444324.

The previous prime is 78888647. The next prime is 78888661. The reversal of 78888652 is 25688887.

It is a self number, because there is not a number n which added to its sum of digits gives 78888652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9861078 + ... + 9861085.

Almost surely, 2^78888652 is an apocalyptic number.

It is an amenable number.

78888652 is a deficient number, since it is larger than the sum of its proper divisors (59166496).

78888652 is a wasteful number, since it uses less digits than its factorization.

78888652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19722167 (or 19722165 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 52.

The square root of 78888652 is about 8881.9283942171. The cubic root of 78888652 is about 428.8823544553.

The spelling of 78888652 in words is "seventy-eight million, eight hundred eighty-eight thousand, six hundred fifty-two".