64993822 has 8 divisors (see below), whose sum is σ = 103225536. Its totient is φ = 30585312.

The previous prime is 64993807. The next prime is 64993849. The reversal of 64993822 is 22839946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 955758 + ... + 955825.

It is an arithmetic number, because the mean of its divisors is an integer number (12903192).

Almost surely, 2^64993822 is an apocalyptic number.

64993822 is a deficient number, since it is larger than the sum of its proper divisors (38231714).

64993822 is a wasteful number, since it uses less digits than its factorization.

64993822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911602.

The product of its digits is 186624, while the sum is 43.

The square root of 64993822 is about 8061.8745958989. The cubic root of 64993822 is about 402.0598369713.

The spelling of 64993822 in words is "sixty-four million, nine hundred ninety-three thousand, eight hundred twenty-two".