49972339 has 4 divisors (see below), whose sum is σ = 50050224. Its totient is φ = 49894456.

The previous prime is 49972331. The next prime is 49972357. The reversal of 49972339 is 93327994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49972339 - 2³ = 49972331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49972331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37972 + ... + 39265.

It is an arithmetic number, because the mean of its divisors is an integer number (12512556).

Almost surely, 2^49972339 is an apocalyptic number.

49972339 is a deficient number, since it is larger than the sum of its proper divisors (77885).

49972339 is an equidigital number, since it uses as much as digits as its factorization.

49972339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77884.

The product of its digits is 367416, while the sum is 46.

The square root of 49972339 is about 7069.1116132086. Note that the first 3 decimals coincide. The cubic root of 49972339 is about 368.3352013355.

The spelling of 49972339 in words is "forty-nine million, nine hundred seventy-two thousand, three hundred thirty-nine".