49690664 has 16 divisors (see below), whose sum is σ = 93261300. Its totient is φ = 24820992.

The previous prime is 49690639. The next prime is 49690679. The reversal of 49690664 is 46609694.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49140100 + 550564 = 7010^2 + 742^2 .

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7982 + ... + 12770.

Almost surely, 2^49690664 is an apocalyptic number.

It is an amenable number.

49690664 is a deficient number, since it is larger than the sum of its proper divisors (43570636).

49690664 is a wasteful number, since it uses less digits than its factorization.

49690664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092 (or 6088 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 49690664 is about 7049.1605173950. The cubic root of 49690664 is about 367.6418419875.

The spelling of 49690664 in words is "forty-nine million, six hundred ninety thousand, six hundred sixty-four".