72227407 has 16 divisors (see below), whose sum is σ = 88715520. Its totient is φ = 57391488.

The previous prime is 72227399. The next prime is 72227413. The reversal of 72227407 is 70472227.

It is not a de Polignac number, because 72227407 - 2³ = 72227399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72227447) 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 15 ways as a sum of consecutive naturals, for example, 3444 + ... + 12502.

It is an arithmetic number, because the mean of its divisors is an integer number (5544720).

Almost surely, 2^72227407 is an apocalyptic number.

72227407 is a deficient number, since it is larger than the sum of its proper divisors (16488113).

72227407 is a wasteful number, since it uses less digits than its factorization.

72227407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9150.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 72227407 is about 8498.6708960872. The cubic root of 72227407 is about 416.4542909879.

The spelling of 72227407 in words is "seventy-two million, two hundred twenty-seven thousand, four hundred seven".