71431479 has 24 divisors (see below), whose sum is σ = 119144480. Its totient is φ = 40393728.

The previous prime is 71431463. The next prime is 71431483. The reversal of 71431479 is 97413417.

It is not a de Polignac number, because 71431479 - 2⁴ = 71431463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71431429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267 + ... + 11955.

Almost surely, 2^71431479 is an apocalyptic number.

71431479 is a deficient number, since it is larger than the sum of its proper divisors (47713001).

71431479 is a wasteful number, since it uses less digits than its factorization.

71431479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11799 (or 11796 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 71431479 is about 8451.7145597802. The cubic root of 71431479 is about 414.9188964265.

The spelling of 71431479 in words is "seventy-one million, four hundred thirty-one thousand, four hundred seventy-nine".