49787864 has 16 divisors (see below), whose sum is σ = 106688400. Its totient is φ = 21337632.

The previous prime is 49787833. The next prime is 49787873. The reversal of 49787864 is 46878794.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 444479 + ... + 444590.

It is an arithmetic number, because the mean of its divisors is an integer number (6668025).

Almost surely, 2^49787864 is an apocalyptic number.

It is an amenable number.

49787864 is an abundant number, since it is smaller than the sum of its proper divisors (56900536).

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

49787864 is a wasteful number, since it uses less digits than its factorization.

49787864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889082 (or 889078 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 49787864 is about 7056.0515871130. The cubic root of 49787864 is about 367.8814008178.

The spelling of 49787864 in words is "forty-nine million, seven hundred eighty-seven thousand, eight hundred sixty-four".