78572852 has 6 divisors (see below), whose sum is σ = 137502498. Its totient is φ = 39286424.

The previous prime is 78572831. The next prime is 78572869. The reversal of 78572852 is 25827587.

It can be written as a sum of positive squares in only one way, i.e., 54228496 + 24344356 = 7364^2 + 4934^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9821603 + ... + 9821610.

It is an arithmetic number, because the mean of its divisors is an integer number (22917083).

Almost surely, 2^78572852 is an apocalyptic number.

It is an amenable number.

78572852 is a deficient number, since it is larger than the sum of its proper divisors (58929646).

78572852 is a wasteful number, since it uses less digits than its factorization.

78572852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19643217 (or 19643215 counting only the distinct ones).

The product of its digits is 313600, while the sum is 44.

The square root of 78572852 is about 8864.1328961157. The cubic root of 78572852 is about 428.3093012738.

It can be divided in two parts, 785 and 72852, that added together give a palindrome (73637).

The spelling of 78572852 in words is "seventy-eight million, five hundred seventy-two thousand, eight hundred fifty-two".