72213085 has 16 divisors (see below), whose sum is σ = 101713536. Its totient is φ = 48178368.

The previous prime is 72213067. The next prime is 72213107. The reversal of 72213085 is 58031227.

It is not a de Polignac number, because 72213085 - 2¹¹ = 72211037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26587 + ... + 29176.

It is an arithmetic number, because the mean of its divisors is an integer number (6357096).

Almost surely, 2^72213085 is an apocalyptic number.

It is an amenable number.

72213085 is a deficient number, since it is larger than the sum of its proper divisors (29500451).

72213085 is a wasteful number, since it uses less digits than its factorization.

72213085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55812.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 72213085 is about 8497.8282519712. The cubic root of 72213085 is about 416.4267628751.

The spelling of 72213085 in words is "seventy-two million, two hundred thirteen thousand, eighty-five".