47499647 has 6 divisors (see below), whose sum is σ = 51434712. Its totient is φ = 43845672.

The previous prime is 47499637. The next prime is 47499659. The reversal of 47499647 is 74699474.

It is not a de Polignac number, because 47499647 - 2⁴ = 47499631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47499595 and 47499604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47499637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140363 + ... + 140700.

It is an arithmetic number, because the mean of its divisors is an integer number (8572452).

Almost surely, 2^47499647 is an apocalyptic number.

47499647 is a deficient number, since it is larger than the sum of its proper divisors (3935065).

47499647 is a wasteful number, since it uses less digits than its factorization.

47499647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281089 (or 281076 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 47499647 is about 6891.9987666859. The cubic root of 47499647 is about 362.1569250350.

The spelling of 47499647 in words is "forty-seven million, four hundred ninety-nine thousand, six hundred forty-seven".