49992789 has 48 divisors (see below), whose sum is σ = 86676480. Its totient is φ = 25331040.

The previous prime is 49992779. The next prime is 49992791. The reversal of 49992789 is 98729994.

It is not a de Polignac number, because 49992789 - 2⁴ = 49992773 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49992769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69172 + ... + 69890.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 2^49992789 is an apocalyptic number.

49992789 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49992789 is a deficient number, since it is larger than the sum of its proper divisors (36683691).

49992789 is a wasteful number, since it uses less digits than its factorization.

49992789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 783 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 57.

The square root of 49992789 is about 7070.5578987800. The cubic root of 49992789 is about 368.3854386451.

The spelling of 49992789 in words is "forty-nine million, nine hundred ninety-two thousand, seven hundred eighty-nine".