64352890 has 32 divisors (see below), whose sum is σ = 133041024. Its totient is φ = 21954240.

The previous prime is 64352863. The next prime is 64352891. The reversal of 64352890 is 9825346.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64352891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12592 + ... + 16948.

It is an arithmetic number, because the mean of its divisors is an integer number (4157532).

Almost surely, 2^64352890 is an apocalyptic number.

64352890 is an abundant number, since it is smaller than the sum of its proper divisors (68688134).

64352890 is a wasteful number, since it uses less digits than its factorization.

64352890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64352890 is about 8022.0253053702. The cubic root of 64352890 is about 400.7338403725.

The spelling of 64352890 in words is "sixty-four million, three hundred fifty-two thousand, eight hundred ninety".