71707742 has 4 divisors (see below), whose sum is σ = 107561616. Its totient is φ = 35853870.

The previous prime is 71707723. The next prime is 71707771. The reversal of 71707742 is 24770717.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17926934 + ... + 17926937.

It is an arithmetic number, because the mean of its divisors is an integer number (26890404).

Almost surely, 2^71707742 is an apocalyptic number.

71707742 is a deficient number, since it is larger than the sum of its proper divisors (35853874).

71707742 is a wasteful number, since it uses less digits than its factorization.

71707742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853873.

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 71707742 is about 8468.0423947923. The cubic root of 71707742 is about 415.4531113295.

The spelling of 71707742 in words is "seventy-one million, seven hundred seven thousand, seven hundred forty-two".