71147408 has 20 divisors (see below), whose sum is σ = 138043248. Its totient is φ = 35523360.

The previous prime is 71147389. The next prime is 71147429. The reversal of 71147408 is 80474117.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 10235 + ... + 15717.

Almost surely, 2^71147408 is an apocalyptic number.

It is an amenable number.

71147408 is a deficient number, since it is larger than the sum of its proper divisors (66895840).

71147408 is a wasteful number, since it uses less digits than its factorization.

71147408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302 (or 6296 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 71147408 is about 8434.8922933254. The cubic root of 71147408 is about 414.3681447664.

The spelling of 71147408 in words is "seventy-one million, one hundred forty-seven thousand, four hundred eight".