72790227 has 12 divisors (see below), whose sum is σ = 105257880. Its totient is φ = 48473088.

The previous prime is 72790219. The next prime is 72790229. The reversal of 72790227 is 72209727.

It is not a de Polignac number, because 72790227 - 2³ = 72790219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72790191 and 72790200.

It is not an unprimeable number, because it can be changed into a prime (72790229) 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, 5203 + ... + 13139.

It is an arithmetic number, because the mean of its divisors is an integer number (8771490).

Almost surely, 2^72790227 is an apocalyptic number.

72790227 is a deficient number, since it is larger than the sum of its proper divisors (32467653).

72790227 is a wasteful number, since it uses less digits than its factorization.

72790227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8962 (or 8959 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 72790227 is about 8531.7188772252. The cubic root of 72790227 is about 417.5332102139.

The spelling of 72790227 in words is "seventy-two million, seven hundred ninety thousand, two hundred twenty-seven".