64089830 has 32 divisors (see below), whose sum is σ = 139599936. Its totient is φ = 20680704.

The previous prime is 64089829. The next prime is 64089841. The reversal of 64089830 is 3898046.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 25739 + ... + 28118.

It is an arithmetic number, because the mean of its divisors is an integer number (4362498).

Almost surely, 2^64089830 is an apocalyptic number.

64089830 is an abundant number, since it is smaller than the sum of its proper divisors (75510106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64089830 is a wasteful number, since it uses less digits than its factorization.

64089830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53888.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 64089830 is about 8005.6124063060. The cubic root of 64089830 is about 400.1870583426.

The spelling of 64089830 in words is "sixty-four million, eighty-nine thousand, eight hundred thirty".