72722835 has 12 divisors (see below), whose sum is σ = 126052992. Its totient is φ = 38785488.

The previous prime is 72722833. The next prime is 72722851. The reversal of 72722835 is 53822727.

It is a happy number.

It is not a de Polignac number, because 72722835 - 2¹ = 72722833 is a prime.

It is a super-2 number, since 2×72722835² = 10577221460874450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72722835.

It is not an unprimeable number, because it can be changed into a prime (72722831) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 807987 + ... + 808076.

It is an arithmetic number, because the mean of its divisors is an integer number (10504416).

Almost surely, 2^72722835 is an apocalyptic number.

72722835 is a deficient number, since it is larger than the sum of its proper divisors (53330157).

72722835 is a wasteful number, since it uses less digits than its factorization.

72722835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616074 (or 1616071 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 72722835 is about 8527.7684654310. The cubic root of 72722835 is about 417.4043143094.

The spelling of 72722835 in words is "seventy-two million, seven hundred twenty-two thousand, eight hundred thirty-five".