71935978 has 8 divisors (see below), whose sum is σ = 109270080. Its totient is φ = 35512620.

The previous prime is 71935951. The next prime is 71936021. The reversal of 71935978 is 87953917.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227488 + ... + 227803.

It is an arithmetic number, because the mean of its divisors is an integer number (13658760).

Almost surely, 2^71935978 is an apocalyptic number.

71935978 is a deficient number, since it is larger than the sum of its proper divisors (37334102).

71935978 is a wasteful number, since it uses less digits than its factorization.

71935978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455372.

The product of its digits is 476280, while the sum is 49.

The square root of 71935978 is about 8481.5080027080. The cubic root of 71935978 is about 415.8934214458.

The spelling of 71935978 in words is "seventy-one million, nine hundred thirty-five thousand, nine hundred seventy-eight".