71497264 has 10 divisors (see below), whose sum is σ = 138525980. Its totient is φ = 35748624.

The previous prime is 71497259. The next prime is 71497273. The reversal of 71497264 is 46279417.

It is a super-2 number, since 2×71497264² = 10223717518971392, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 2234274 + ... + 2234305.

It is an arithmetic number, because the mean of its divisors is an integer number (13852598).

Almost surely, 2^71497264 is an apocalyptic number.

It is an amenable number.

71497264 is a deficient number, since it is larger than the sum of its proper divisors (67028716).

71497264 is a wasteful number, since it uses less digits than its factorization.

71497264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468587 (or 4468581 counting only the distinct ones).

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

The square root of 71497264 is about 8455.6054780246. The cubic root of 71497264 is about 415.0462308782.

The spelling of 71497264 in words is "seventy-one million, four hundred ninety-seven thousand, two hundred sixty-four".