49699664 has 40 divisors (see below), whose sum is σ = 110403648. Its totient is φ = 21231360.

The previous prime is 49699651. The next prime is 49699669. The reversal of 49699664 is 46699694.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49699669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50699 + ... + 51669.

Almost surely, 2^49699664 is an apocalyptic number.

It is an amenable number.

49699664 is an abundant number, since it is smaller than the sum of its proper divisors (60703984).

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

49699664 is a wasteful number, since it uses less digits than its factorization.

49699664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1437 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 53.

The square root of 49699664 is about 7049.7988623790. The cubic root of 49699664 is about 367.6640364775.

The spelling of 49699664 in words is "forty-nine million, six hundred ninety-nine thousand, six hundred sixty-four".