47198939 has 8 divisors (see below), whose sum is σ = 48978048. Its totient is φ = 45446400.

The previous prime is 47198929. The next prime is 47198941. The reversal of 47198939 is 93989174.

47198939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47198939 - 2²⁴ = 30421723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47198929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2987 + ... + 10164.

It is an arithmetic number, because the mean of its divisors is an integer number (6122256).

Almost surely, 2^47198939 is an apocalyptic number.

47198939 is a deficient number, since it is larger than the sum of its proper divisors (1779109).

47198939 is a wasteful number, since it uses less digits than its factorization.

47198939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13285.

The product of its digits is 489888, while the sum is 50.

The square root of 47198939 is about 6870.1483972328. The cubic root of 47198939 is about 361.3910659429.

The spelling of 47198939 in words is "forty-seven million, one hundred ninety-eight thousand, nine hundred thirty-nine".