78683572 has 12 divisors (see below), whose sum is σ = 150214176. Its totient is φ = 35765240.

The previous prime is 78683569. The next prime is 78683629. The reversal of 78683572 is 27538687.

It is a super-2 number, since 2×78683572² = 12382209005358368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 894088 + ... + 894175.

It is an arithmetic number, because the mean of its divisors is an integer number (12517848).

Almost surely, 2^78683572 is an apocalyptic number.

It is an amenable number.

78683572 is a deficient number, since it is larger than the sum of its proper divisors (71530604).

78683572 is a wasteful number, since it uses less digits than its factorization.

78683572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788278 (or 1788276 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 78683572 is about 8870.3760912376. The cubic root of 78683572 is about 428.5103891693.

The spelling of 78683572 in words is "seventy-eight million, six hundred eighty-three thousand, five hundred seventy-two".