47499664 has 15 divisors (see below), whose sum is σ = 92084043. Its totient is φ = 23736048.

The previous prime is 47499659. The next prime is 47499671. The reversal of 47499664 is 46699474.

It is a happy number.

The square root of 47499664 is 6892.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×47499664² = 4512436160225792, which contains 22 as substring.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 26707 + ... + 28429.

Almost surely, 2^47499664 is an apocalyptic number.

47499664 is the 6892-nd square number.

It is an amenable number.

47499664 is a deficient number, since it is larger than the sum of its proper divisors (44584379).

47499664 is an frugal number, since it uses more digits than its factorization.

47499664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454 (or 1725 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The cubic root of 47499664 is about 362.1569682401.

Multiplying 47499664 by its sum of digits (49), we get a square (2327483536 = 48244²).

The spelling of 47499664 in words is "forty-seven million, four hundred ninety-nine thousand, six hundred sixty-four".