71712907 has 16 divisors (see below), whose sum is σ = 84326400. Its totient is φ = 59716800.

The previous prime is 71712887. The next prime is 71712917. The reversal of 71712907 is 70921717.

It is a cyclic number.

It is not a de Polignac number, because 71712907 - 2¹⁵ = 71680139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71712917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35782 + ... + 37732.

It is an arithmetic number, because the mean of its divisors is an integer number (5270400).

Almost surely, 2^71712907 is an apocalyptic number.

71712907 is a deficient number, since it is larger than the sum of its proper divisors (12613493).

71712907 is a wasteful number, since it uses less digits than its factorization.

71712907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 71712907 is about 8468.3473594321. The cubic root of 71712907 is about 415.4630859094.

The spelling of 71712907 in words is "seventy-one million, seven hundred twelve thousand, nine hundred seven".