72112707 has 16 divisors (see below), whose sum is σ = 107032480. Its totient is φ = 47985696.

The previous prime is 72112699. The next prime is 72112717. The reversal of 72112707 is 70721127.

It is not a de Polignac number, because 72112707 - 2³ = 72112699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72112717) 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 15 ways as a sum of consecutive naturals, for example, 14373 + ... + 18729.

It is an arithmetic number, because the mean of its divisors is an integer number (6689530).

Almost surely, 2^72112707 is an apocalyptic number.

72112707 is a deficient number, since it is larger than the sum of its proper divisors (34919773).

72112707 is a wasteful number, since it uses less digits than its factorization.

72112707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 72112707 is about 8491.9201008959. The cubic root of 72112707 is about 416.2337255223.

The spelling of 72112707 in words is "seventy-two million, one hundred twelve thousand, seven hundred seven".