47999247 has 16 divisors (see below), whose sum is σ = 64782432. Its totient is φ = 31610880.

The previous prime is 47999243. The next prime is 47999257. The reversal of 47999247 is 74299974.

It is not a de Polignac number, because 47999247 - 2² = 47999243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47999247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47999243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142263 + ... + 142599.

It is an arithmetic number, because the mean of its divisors is an integer number (4048902).

Almost surely, 2^47999247 is an apocalyptic number.

47999247 is a deficient number, since it is larger than the sum of its proper divisors (16783185).

47999247 is a wasteful number, since it uses less digits than its factorization.

47999247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778.

The product of its digits is 1143072, while the sum is 51.

The square root of 47999247 is about 6928.1488869683. The cubic root of 47999247 is about 363.4222181512.

The spelling of 47999247 in words is "forty-seven million, nine hundred ninety-nine thousand, two hundred forty-seven".