49997764 has 6 divisors (see below), whose sum is σ = 87496094. Its totient is φ = 24998880.

The previous prime is 49997747. The next prime is 49997771. The reversal of 49997764 is 46779994.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34316164 + 15681600 = 5858^2 + 3960^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6249717 + ... + 6249724.

Almost surely, 2^49997764 is an apocalyptic number.

It is an amenable number.

49997764 is a deficient number, since it is larger than the sum of its proper divisors (37498330).

49997764 is a wasteful number, since it uses less digits than its factorization.

49997764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499445 (or 12499443 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 55.

The square root of 49997764 is about 7070.9097010215. The cubic root of 49997764 is about 368.3976581192.

The spelling of 49997764 in words is "forty-nine million, nine hundred ninety-seven thousand, seven hundred sixty-four".