71907372 has 48 divisors (see below), whose sum is σ = 188546400. Its totient is φ = 23696640.

The previous prime is 71907307. The next prime is 71907389. The reversal of 71907372 is 27370917.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5872 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (3928050).

Almost surely, 2^71907372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71907372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94273200).

71907372 is an abundant number, since it is smaller than the sum of its proper divisors (116639028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71907372 is a wasteful number, since it uses less digits than its factorization.

71907372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583 (or 7575 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 71907372 is about 8479.8214603846. The cubic root of 71907372 is about 415.8382861951.

The spelling of 71907372 in words is "seventy-one million, nine hundred seven thousand, three hundred seventy-two".