64944850 has 48 divisors (see below), whose sum is σ = 128340000. Its totient is φ = 24382080.

The previous prime is 64944839. The next prime is 64944851. The reversal of 64944850 is 5844946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64944851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129901 + ... + 130399.

It is an arithmetic number, because the mean of its divisors is an integer number (2673750).

Almost surely, 2^64944850 is an apocalyptic number.

64944850 is a deficient number, since it is larger than the sum of its proper divisors (63395150).

64944850 is a wasteful number, since it uses less digits than its factorization.

64944850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 64944850 is about 8058.8367646950. The cubic root of 64944850 is about 401.9588293109.

The spelling of 64944850 in words is "sixty-four million, nine hundred forty-four thousand, eight hundred fifty".