78968528 has 10 divisors (see below), whose sum is σ = 153001554. Its totient is φ = 39484256.

The previous prime is 78968521. The next prime is 78968557. The reversal of 78968528 is 82586987.

It can be written as a sum of positive squares in only one way, i.e., 77299264 + 1669264 = 8792^2 + 1292^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78968528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78968521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2467751 + ... + 2467782.

Almost surely, 2^78968528 is an apocalyptic number.

It is an amenable number.

78968528 is a deficient number, since it is larger than the sum of its proper divisors (74033026).

78968528 is a wasteful number, since it uses less digits than its factorization.

78968528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935541 (or 4935535 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The square root of 78968528 is about 8886.4238026329. The cubic root of 78968528 is about 429.0270556704.

The spelling of 78968528 in words is "seventy-eight million, nine hundred sixty-eight thousand, five hundred twenty-eight".