72036706 has 16 divisors (see below), whose sum is σ = 126830016. Its totient is φ = 30038256.

The previous prime is 72036659. The next prime is 72036707. The reversal of 72036706 is 60763027.

It is a super-2 number, since 2×72036706² = 10378574022660872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72036707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69016 + ... + 70051.

It is an arithmetic number, because the mean of its divisors is an integer number (7926876).

Almost surely, 2^72036706 is an apocalyptic number.

72036706 is a deficient number, since it is larger than the sum of its proper divisors (54793310).

72036706 is a wasteful number, since it uses less digits than its factorization.

72036706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139113.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 72036706 is about 8487.4440204339. Note that the first 3 decimals coincide. The cubic root of 72036706 is about 416.0874484860.

The spelling of 72036706 in words is "seventy-two million, thirty-six thousand, seven hundred six".