71707487 has 8 divisors (see below), whose sum is σ = 72930816. Its totient is φ = 70488792.

The previous prime is 71707481. The next prime is 71707507. The reversal of 71707487 is 78470717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71707487 - 2⁶ = 71707423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71707481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44978 + ... + 46544.

It is an arithmetic number, because the mean of its divisors is an integer number (9116352).

Almost surely, 2^71707487 is an apocalyptic number.

71707487 is a deficient number, since it is larger than the sum of its proper divisors (1223329).

71707487 is a wasteful number, since it uses less digits than its factorization.

71707487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317.

The product of its (nonzero) digits is 76832, while the sum is 41.

The square root of 71707487 is about 8468.0273381703. The cubic root of 71707487 is about 415.4526188645.

The spelling of 71707487 in words is "seventy-one million, seven hundred seven thousand, four hundred eighty-seven".