78833564 has 12 divisors (see below), whose sum is σ = 138150600. Its totient is φ = 39361968.

The previous prime is 78833563. The next prime is 78833567. The reversal of 78833564 is 46533887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78833561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10379 + ... + 16290.

It is an arithmetic number, because the mean of its divisors is an integer number (11512550).

Almost surely, 2^78833564 is an apocalyptic number.

It is an amenable number.

78833564 is a deficient number, since it is larger than the sum of its proper divisors (59317036).

78833564 is a wasteful number, since it uses less digits than its factorization.

78833564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27412 (or 27410 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 78833564 is about 8878.8267242919. The cubic root of 78833564 is about 428.7825015948.

It can be divided in two parts, 78833 and 564, that added together give a palindrome (79397).

The spelling of 78833564 in words is "seventy-eight million, eight hundred thirty-three thousand, five hundred sixty-four".