71463964 has 48 divisors (see below), whose sum is σ = 148500576. Its totient is φ = 29664000.

The previous prime is 71463949. The next prime is 71463989. The reversal of 71463964 is 46936417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57154 + ... + 58390.

It is an arithmetic number, because the mean of its divisors is an integer number (3093762).

Almost surely, 2^71463964 is an apocalyptic number.

It is an amenable number.

71463964 is an abundant number, since it is smaller than the sum of its proper divisors (77036612).

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

71463964 is a wasteful number, since it uses less digits than its factorization.

71463964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1364 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 71463964 is about 8453.6361407385. The cubic root of 71463964 is about 414.9817846556.

It can be divided in two parts, 71463 and 964, that added together give a palindrome (72427).

The spelling of 71463964 in words is "seventy-one million, four hundred sixty-three thousand, nine hundred sixty-four".