78831652 has 24 divisors (see below), whose sum is σ = 146742624. Its totient is φ = 36926592.

The previous prime is 78831619. The next prime is 78831659. The reversal of 78831652 is 25613887.

It is not an unprimeable number, because it can be changed into a prime (78831659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12883 + ... + 17989.

It is an arithmetic number, because the mean of its divisors is an integer number (6114276).

Almost surely, 2^78831652 is an apocalyptic number.

It is an amenable number.

78831652 is a deficient number, since it is larger than the sum of its proper divisors (67910972).

78831652 is a wasteful number, since it uses less digits than its factorization.

78831652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355 (or 5353 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 78831652 is about 8878.7190517552. The cubic root of 78831652 is about 428.7790350563.

The spelling of 78831652 in words is "seventy-eight million, eight hundred thirty-one thousand, six hundred fifty-two".