47539899 has 32 divisors (see below), whose sum is σ = 78163200. Its totient is φ = 28313280.

The previous prime is 47539879. The next prime is 47539907. The reversal of 47539899 is 99893574.

It is not a de Polignac number, because 47539899 - 2⁵ = 47539867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47539829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16167 + ... + 18879.

It is an arithmetic number, because the mean of its divisors is an integer number (2442600).

Almost surely, 2^47539899 is an apocalyptic number.

47539899 is a deficient number, since it is larger than the sum of its proper divisors (30623301).

47539899 is a wasteful number, since it uses less digits than its factorization.

47539899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792 (or 2786 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 47539899 is about 6894.9183461445. The cubic root of 47539899 is about 362.2591954423.

The spelling of 47539899 in words is "forty-seven million, five hundred thirty-nine thousand, eight hundred ninety-nine".