49777899 has 4 divisors (see below), whose sum is σ = 66370536. Its totient is φ = 33185264.

The previous prime is 49777883. The next prime is 49777907. The reversal of 49777899 is 99877794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49777899 - 2⁴ = 49777883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49777829) 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 3 ways as a sum of consecutive naturals, for example, 8296314 + ... + 8296319.

It is an arithmetic number, because the mean of its divisors is an integer number (16592634).

Almost surely, 2^49777899 is an apocalyptic number.

49777899 is a deficient number, since it is larger than the sum of its proper divisors (16592637).

49777899 is a wasteful number, since it uses less digits than its factorization.

49777899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16592636.

The product of its digits is 8001504, while the sum is 60.

The square root of 49777899 is about 7055.3454203178. The cubic root of 49777899 is about 367.8568554603.

The spelling of 49777899 in words is "forty-nine million, seven hundred seventy-seven thousand, eight hundred ninety-nine".