72226707 has 32 divisors (see below), whose sum is σ = 113702400. Its totient is φ = 39924480.

The previous prime is 72226703. The next prime is 72226709. The reversal of 72226707 is 70762227.

It is not a de Polignac number, because 72226707 - 2² = 72226703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72226703) 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 31 ways as a sum of consecutive naturals, for example, 128008 + ... + 128570.

It is an arithmetic number, because the mean of its divisors is an integer number (3553200).

Almost surely, 2^72226707 is an apocalyptic number.

72226707 is a deficient number, since it is larger than the sum of its proper divisors (41475693).

72226707 is a wasteful number, since it uses less digits than its factorization.

72226707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 72226707 is about 8498.6297130773. The cubic root of 72226707 is about 416.4529456125.

The spelling of 72226707 in words is "seventy-two million, two hundred twenty-six thousand, seven hundred seven".