49665864 has 32 divisors (see below), whose sum is σ = 128448000. Its totient is φ = 15984192.

The previous prime is 49665859. The next prime is 49665871. The reversal of 49665864 is 46856694.

It is a happy 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, 34984 + ... + 36375.

It is an arithmetic number, because the mean of its divisors is an integer number (4014000).

Almost surely, 2^49665864 is an apocalyptic number.

It is an amenable number.

49665864 is an abundant number, since it is smaller than the sum of its proper divisors (78782136).

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

49665864 is a wasteful number, since it uses less digits than its factorization.

49665864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71397 (or 71393 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 49665864 is about 7047.4012231460. The cubic root of 49665864 is about 367.5806699673.

The spelling of 49665864 in words is "forty-nine million, six hundred sixty-five thousand, eight hundred sixty-four".