71427964 has 12 divisors (see below), whose sum is σ = 125912304. Its totient is φ = 35453024.

The previous prime is 71427953. The next prime is 71427977. The reversal of 71427964 is 46972417.

It is a congruent number.

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, 64624 + ... + 65719.

It is an arithmetic number, because the mean of its divisors is an integer number (10492692).

Almost surely, 2^71427964 is an apocalyptic number.

It is an amenable number.

71427964 is a deficient number, since it is larger than the sum of its proper divisors (54484340).

71427964 is a wasteful number, since it uses less digits than its factorization.

71427964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130484 (or 130482 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 71427964 is about 8451.5066112499. The cubic root of 71427964 is about 414.9120905390.

The spelling of 71427964 in words is "seventy-one million, four hundred twenty-seven thousand, nine hundred sixty-four".