49879998 has 24 divisors (see below), whose sum is σ = 123512688. Its totient is φ = 14251392.

The previous prime is 49879987. The next prime is 49880021. The reversal of 49879998 is 89997894.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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, 197811 + ... + 198062.

It is an arithmetic number, because the mean of its divisors is an integer number (5146362).

Almost surely, 2^49879998 is an apocalyptic number.

49879998 is an abundant number, since it is smaller than the sum of its proper divisors (73632690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49879998 is a wasteful number, since it uses less digits than its factorization.

49879998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395888 (or 395885 counting only the distinct ones).

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

The square root of 49879998 is about 7062.5772916125. The cubic root of 49879998 is about 368.1081863313.

The spelling of 49879998 in words is "forty-nine million, eight hundred seventy-nine thousand, nine hundred ninety-eight".