72772205 has 8 divisors (see below), whose sum is σ = 95265504. Its totient is φ = 52925200.

The previous prime is 72772177. The next prime is 72772243. The reversal of 72772205 is 50227727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72772205 - 2⁸ = 72771949 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 7 ways as a sum of consecutive naturals, for example, 661511 + ... + 661620.

It is an arithmetic number, because the mean of its divisors is an integer number (11908188).

Almost surely, 2^72772205 is an apocalyptic number.

It is an amenable number.

72772205 is a deficient number, since it is larger than the sum of its proper divisors (22493299).

72772205 is a wasteful number, since it uses less digits than its factorization.

72772205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323147.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 72772205 is about 8530.6626354580. The cubic root of 72772205 is about 417.4987486068.

It can be divided in two parts, 72 and 772205, that added together give a palindrome (772277).

The spelling of 72772205 in words is "seventy-two million, seven hundred seventy-two thousand, two hundred five".