78883528 has 16 divisors (see below), whose sum is σ = 148660380. Its totient is φ = 39240768.

The previous prime is 78883501. The next prime is 78883529. The reversal of 78883528 is 82538887.

It can be written as a sum of positive squares in 2 ways, for example, as 51236964 + 27646564 = 7158^2 + 5258^2 .

It is a super-2 number, since 2×78883528² = 12445221979453568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78883529) 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, 23451 + ... + 26602.

Almost surely, 2^78883528 is an apocalyptic number.

It is an amenable number.

78883528 is a deficient number, since it is larger than the sum of its proper divisors (69776852).

78883528 is a wasteful number, since it uses less digits than its factorization.

78883528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50256 (or 50252 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 78883528 is about 8881.6399386600. The cubic root of 78883528 is about 428.8730686214.

The spelling of 78883528 in words is "seventy-eight million, eight hundred eighty-three thousand, five hundred twenty-eight".