72122798 has 16 divisors (see below), whose sum is σ = 119239344. Its totient is φ = 32444160.

The previous prime is 72122761. The next prime is 72122807. The reversal of 72122798 is 89722127.

It is a congruent number.

It is an unprimeable number.

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, 14765 + ... + 19032.

It is an arithmetic number, because the mean of its divisors is an integer number (7452459).

Almost surely, 2^72122798 is an apocalyptic number.

72122798 is a deficient number, since it is larger than the sum of its proper divisors (47116546).

72122798 is a wasteful number, since it uses less digits than its factorization.

72122798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33907.

The product of its digits is 28224, while the sum is 38.

The square root of 72122798 is about 8492.5142331350. The cubic root of 72122798 is about 416.2531396626.

The spelling of 72122798 in words is "seventy-two million, one hundred twenty-two thousand, seven hundred ninety-eight".