49999923 has 28 divisors (see below), whose sum is σ = 75784248. Its totient is φ = 32970240.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999923 is 32999994.

It is not a de Polignac number, because 49999923 - 2¹ = 49999921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49999923.

It is not an unprimeable number, because it can be changed into a prime (49999921) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 77683 + ... + 78323.

Almost surely, 2^49999923 is an apocalyptic number.

49999923 is a deficient number, since it is larger than the sum of its proper divisors (25784325).

49999923 is an equidigital number, since it uses as much as digits as its factorization.

49999923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 751 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 54.

The square root of 49999923 is about 7071.0623671412. The cubic root of 49999923 is about 368.4029607503.

The spelling of 49999923 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred twenty-three".