64412990 has 8 divisors (see below), whose sum is σ = 115943400. Its totient is φ = 25765192.

The previous prime is 64412987. The next prime is 64413043. The reversal of 64412990 is 9921446.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64412990.

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, 3220640 + ... + 3220659.

It is an arithmetic number, because the mean of its divisors is an integer number (14492925).

Almost surely, 2^64412990 is an apocalyptic number.

64412990 is a deficient number, since it is larger than the sum of its proper divisors (51530410).

64412990 is a wasteful number, since it uses less digits than its factorization.

64412990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6441306.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 64412990 is about 8025.7703680083. The cubic root of 64412990 is about 400.8585517372.

The spelling of 64412990 in words is "sixty-four million, four hundred twelve thousand, nine hundred ninety".