71707545 has 96 divisors (see below), whose sum is σ = 158112000. Its totient is φ = 30191616.

The previous prime is 71707529. The next prime is 71707549. The reversal of 71707545 is 54570717.

It is not a de Polignac number, because 71707545 - 2⁴ = 71707529 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71707549) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 159481 + ... + 159929.

It is an arithmetic number, because the mean of its divisors is an integer number (1647000).

Almost surely, 2^71707545 is an apocalyptic number.

It is an amenable number.

71707545 is an abundant number, since it is smaller than the sum of its proper divisors (86404455).

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

71707545 is a wasteful number, since it uses less digits than its factorization.

71707545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 71707545 is about 8468.0307628161. The cubic root of 71707545 is about 415.4527308762.

The spelling of 71707545 in words is "seventy-one million, seven hundred seven thousand, five hundred forty-five".