79143572 has 6 divisors (see below), whose sum is σ = 138501258. Its totient is φ = 39571784.

The previous prime is 79143557. The next prime is 79143583. The reversal of 79143572 is 27534197.

It can be written as a sum of positive squares in only one way, i.e., 59660176 + 19483396 = 7724^2 + 4414^2 .

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 as a sum of consecutive naturals, namely, 9892943 + ... + 9892950.

It is an arithmetic number, because the mean of its divisors is an integer number (23083543).

Almost surely, 2^79143572 is an apocalyptic number.

It is an amenable number.

79143572 is a deficient number, since it is larger than the sum of its proper divisors (59357686).

79143572 is a wasteful number, since it uses less digits than its factorization.

79143572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19785897 (or 19785895 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 79143572 is about 8896.2673071351. The cubic root of 79143572 is about 429.3438198018.

The spelling of 79143572 in words is "seventy-nine million, one hundred forty-three thousand, five hundred seventy-two".