79722250 has 16 divisors (see below), whose sum is σ = 149240520. Its totient is φ = 31888800.

The previous prime is 79722239. The next prime is 79722257. The reversal of 79722250 is 5222797.

It can be written as a sum of positive squares in 4 ways, for example, as 24532209 + 55190041 = 4953^2 + 7429^2 .

It is not an unprimeable number, because it can be changed into a prime (79722257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159195 + ... + 159694.

Almost surely, 2^79722250 is an apocalyptic number.

79722250 is a deficient number, since it is larger than the sum of its proper divisors (69518270).

79722250 is a wasteful number, since it uses less digits than its factorization.

79722250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318906 (or 318896 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 79722250 is about 8928.7317128470. The cubic root of 79722250 is about 430.3876979308.

The spelling of 79722250 in words is "seventy-nine million, seven hundred twenty-two thousand, two hundred fifty".