71968474 has 4 divisors (see below), whose sum is σ = 107952714. Its totient is φ = 35984236.

The previous prime is 71968439. The next prime is 71968493. The reversal of 71968474 is 47486917.

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

It can be written as a sum of positive squares in only one way, i.e., 47018449 + 24950025 = 6857^2 + 4995^2 .

It is a super-2 number, since 2×71968474² = 10358922499777352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17992117 + ... + 17992120.

Almost surely, 2^71968474 is an apocalyptic number.

71968474 is a deficient number, since it is larger than the sum of its proper divisors (35984240).

71968474 is a wasteful number, since it uses less digits than its factorization.

71968474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35984239.

The product of its digits is 338688, while the sum is 46.

The square root of 71968474 is about 8483.4234834765. The cubic root of 71968474 is about 415.9560365584.

The spelling of 71968474 in words is "seventy-one million, nine hundred sixty-eight thousand, four hundred seventy-four".