49998879 has 12 divisors (see below), whose sum is σ = 82537936. Its totient is φ = 28570752.

The previous prime is 49998869. The next prime is 49998911. The reversal of 49998879 is 97889994.

It is not a de Polignac number, because 49998879 - 2⁸ = 49998623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 793633 = 49998879 / (4 + 9 + 9 + 9 + 8 + 8 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49998869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396754 + ... + 396879.

Almost surely, 2^49998879 is an apocalyptic number.

49998879 is a deficient number, since it is larger than the sum of its proper divisors (32539057).

49998879 is a wasteful number, since it uses less digits than its factorization.

49998879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793646 (or 793643 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 49998879 is about 7070.9885447510. The cubic root of 49998879 is about 368.4003966439.

The spelling of 49998879 in words is "forty-nine million, nine hundred ninety-eight thousand, eight hundred seventy-nine".