71572308 has 12 divisors (see below), whose sum is σ = 167002080. Its totient is φ = 23857432.

The previous prime is 71572307. The next prime is 71572309. The reversal of 71572308 is 80327517.

It is an interprime number because it is at equal distance from previous prime (71572307) and next prime (71572309).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71572301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2982168 + ... + 2982191.

It is an arithmetic number, because the mean of its divisors is an integer number (13916840).

Almost surely, 2^71572308 is an apocalyptic number.

It is an amenable number.

71572308 is an abundant number, since it is smaller than the sum of its proper divisors (95429772).

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

71572308 is a wasteful number, since it uses less digits than its factorization.

71572308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964366 (or 5964364 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 71572308 is about 8460.0418438681. The cubic root of 71572308 is about 415.1913918568.

The spelling of 71572308 in words is "seventy-one million, five hundred seventy-two thousand, three hundred eight".