71430864 has 20 divisors (see below), whose sum is σ = 184529856. Its totient is φ = 23810272.

The previous prime is 71430811. The next prime is 71430883. The reversal of 71430864 is 46803417.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744024 + ... + 744119.

Almost surely, 2^71430864 is an apocalyptic number.

It is an amenable number.

71430864 is an abundant number, since it is smaller than the sum of its proper divisors (113098992).

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

71430864 is a wasteful number, since it uses less digits than its factorization.

71430864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488154 (or 1488148 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 71430864 is about 8451.6781765517. The cubic root of 71430864 is about 414.9177056544.

The spelling of 71430864 in words is "seventy-one million, four hundred thirty thousand, eight hundred sixty-four".