64359890 has 16 divisors (see below), whose sum is σ = 132397632. Its totient is φ = 22066224.

The previous prime is 64359851. The next prime is 64359899. The reversal of 64359890 is 9895346.

It is not an unprimeable number, because it can be changed into a prime (64359899) 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, 459644 + ... + 459783.

It is an arithmetic number, because the mean of its divisors is an integer number (8274852).

Almost surely, 2^64359890 is an apocalyptic number.

64359890 is an abundant number, since it is smaller than the sum of its proper divisors (68037742).

64359890 is a wasteful number, since it uses less digits than its factorization.

64359890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919441.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 64359890 is about 8022.4615923044. The cubic root of 64359890 is about 400.7483698167.

The spelling of 64359890 in words is "sixty-four million, three hundred fifty-nine thousand, eight hundred ninety".