49404923 has 4 divisors (see below), whose sum is σ = 49420200. Its totient is φ = 49389648.

The previous prime is 49404919. The next prime is 49404931. The reversal of 49404923 is 32940494.

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 49404923 - 2² = 49404919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49404983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665 + ... + 9962.

It is an arithmetic number, because the mean of its divisors is an integer number (12355050).

Almost surely, 2^49404923 is an apocalyptic number.

49404923 is a deficient number, since it is larger than the sum of its proper divisors (15277).

49404923 is a wasteful number, since it uses less digits than its factorization.

49404923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15276.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 49404923 is about 7028.8635639056. The cubic root of 49404923 is about 366.9357914928.

The spelling of 49404923 in words is "forty-nine million, four hundred four thousand, nine hundred twenty-three".