49979321 has 4 divisors (see below), whose sum is σ = 57119232. Its totient is φ = 42839412.

The previous prime is 49979317. The next prime is 49979323. The reversal of 49979321 is 12397994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49979321 - 2² = 49979317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49979323) 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, 3569945 + ... + 3569958.

It is an arithmetic number, because the mean of its divisors is an integer number (14279808).

Almost surely, 2^49979321 is an apocalyptic number.

It is an amenable number.

49979321 is a deficient number, since it is larger than the sum of its proper divisors (7139911).

49979321 is an equidigital number, since it uses as much as digits as its factorization.

49979321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139910.

The product of its digits is 122472, while the sum is 44.

The square root of 49979321 is about 7069.6054345345. The cubic root of 49979321 is about 368.3523548025.

The spelling of 49979321 in words is "forty-nine million, nine hundred seventy-nine thousand, three hundred twenty-one".