48179991 has 16 divisors (see below), whose sum is σ = 69955200. Its totient is φ = 29379168.

The previous prime is 48179987. The next prime is 48179993. The reversal of 48179991 is 19997184.

It is not a de Polignac number, because 48179991 - 2² = 48179987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48179991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48179993) 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, 12921 + ... + 16226.

It is an arithmetic number, because the mean of its divisors is an integer number (4372200).

Almost surely, 2^48179991 is an apocalyptic number.

48179991 is a deficient number, since it is larger than the sum of its proper divisors (21775209).

48179991 is a wasteful number, since it uses less digits than its factorization.

48179991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29198.

The product of its digits is 163296, while the sum is 48.

The square root of 48179991 is about 6941.1808073267. The cubic root of 48179991 is about 363.8778093871.

The spelling of 48179991 in words is "forty-eight million, one hundred seventy-nine thousand, nine hundred ninety-one".