72091202 has 16 divisors (see below), whose sum is σ = 111118392. Its totient is φ = 35057280.

The previous prime is 72091171. The next prime is 72091211. The reversal of 72091202 is 20219027.

It can be written as a sum of positive squares in 4 ways, for example, as 33166081 + 38925121 = 5759^2 + 6239^2 .

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, 29408 + ... + 31764.

Almost surely, 2^72091202 is an apocalyptic number.

72091202 is a deficient number, since it is larger than the sum of its proper divisors (39027190).

72091202 is a wasteful number, since it uses less digits than its factorization.

72091202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 72091202 is about 8490.6538028588. The cubic root of 72091202 is about 416.1923458701.

The spelling of 72091202 in words is "seventy-two million, ninety-one thousand, two hundred two".