49977816 has 32 divisors (see below), whose sum is σ = 142794240. Its totient is φ = 14279328.

The previous prime is 49977803. The next prime is 49977839. The reversal of 49977816 is 61877994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148576 + ... + 148911.

It is an arithmetic number, because the mean of its divisors is an integer number (4462320).

Almost surely, 2^49977816 is an apocalyptic number.

It is an amenable number.

49977816 is an abundant number, since it is smaller than the sum of its proper divisors (92816424).

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

49977816 is a wasteful number, since it uses less digits than its factorization.

49977816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297503 (or 297499 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 49977816 is about 7069.4989921493. The cubic root of 49977816 is about 368.3486574343.

The spelling of 49977816 in words is "forty-nine million, nine hundred seventy-seven thousand, eight hundred sixteen".