71534408 has 32 divisors (see below), whose sum is σ = 146936160. Its totient is φ = 32378880.

The previous prime is 71534399. The next prime is 71534429. The reversal of 71534408 is 80443517.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21035 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (4591755).

Almost surely, 2^71534408 is an apocalyptic number.

It is an amenable number.

71534408 is an abundant number, since it is smaller than the sum of its proper divisors (75401752).

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

71534408 is a wasteful number, since it uses less digits than its factorization.

71534408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437 (or 3433 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 71534408 is about 8457.8016056183. The cubic root of 71534408 is about 415.1180928740.

The spelling of 71534408 in words is "seventy-one million, five hundred thirty-four thousand, four hundred eight".