49923869 has 4 divisors (see below), whose sum is σ = 52094496. Its totient is φ = 47753244.

The previous prime is 49923859. The next prime is 49923943. The reversal of 49923869 is 96832994.

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 49923869 - 2⁸ = 49923613 is a prime.

It is a super-2 number, since 2×49923869² = 4984785391858322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49923829) 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, 1085279 + ... + 1085324.

It is an arithmetic number, because the mean of its divisors is an integer number (13023624).

Almost surely, 2^49923869 is an apocalyptic number.

It is an amenable number.

49923869 is a deficient number, since it is larger than the sum of its proper divisors (2170627).

49923869 is a wasteful number, since it uses less digits than its factorization.

49923869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170626.

The product of its digits is 839808, while the sum is 50.

The square root of 49923869 is about 7065.6824864977. The cubic root of 49923869 is about 368.2160755495.

The spelling of 49923869 in words is "forty-nine million, nine hundred twenty-three thousand, eight hundred sixty-nine".