71611408 has 20 divisors (see below), whose sum is σ = 151360848. Its totient is φ = 32550560.

The previous prime is 71611387. The next prime is 71611417. The reversal of 71611408 is 80411617.

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, 203266 + ... + 203617.

Almost surely, 2^71611408 is an apocalyptic number.

It is an amenable number.

71611408 is an abundant number, since it is smaller than the sum of its proper divisors (79749440).

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

71611408 is a wasteful number, since it uses less digits than its factorization.

71611408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406902 (or 406896 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 71611408 is about 8462.3523916226. The cubic root of 71611408 is about 415.2669845385.

The spelling of 71611408 in words is "seventy-one million, six hundred eleven thousand, four hundred eight".