47215692 has 18 divisors (see below), whose sum is σ = 119350868. Its totient is φ = 15738552.

The previous prime is 47215691. The next prime is 47215717. The reversal of 47215692 is 29651274.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1311547 = 47215692 / (4 + 7 + 2 + 1 + 5 + 6 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (47215691) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 655738 + ... + 655809.

Almost surely, 2^47215692 is an apocalyptic number.

It is an amenable number.

47215692 is an abundant number, since it is smaller than the sum of its proper divisors (72135176).

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

47215692 is a wasteful number, since it uses less digits than its factorization.

47215692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311557 (or 1311552 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 47215692 is about 6871.3675494766. The cubic root of 47215692 is about 361.4338187990.

The spelling of 47215692 in words is "forty-seven million, two hundred fifteen thousand, six hundred ninety-two".