78870532 has 24 divisors (see below), whose sum is σ = 152661656. Its totient is φ = 35417088.

The previous prime is 78870529. The next prime is 78870581. The reversal of 78870532 is 23507887.

It can be written as a sum of positive squares in 4 ways, for example, as 3944196 + 74926336 = 1986^2 + 8656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18573 + ... + 22420.

Almost surely, 2^78870532 is an apocalyptic number.

It is an amenable number.

78870532 is a deficient number, since it is larger than the sum of its proper divisors (73791124).

78870532 is a wasteful number, since it uses less digits than its factorization.

78870532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41047 (or 41045 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 78870532 is about 8880.9082868815. The cubic root of 78870532 is about 428.8495151595.

The spelling of 78870532 in words is "seventy-eight million, eight hundred seventy thousand, five hundred thirty-two".