64890110 has 16 divisors (see below), whose sum is σ = 120830400. Its totient is φ = 25060896.

The previous prime is 64890097. The next prime is 64890113. The reversal of 64890110 is 1109846.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64890113) 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 7 ways as a sum of consecutive naturals, for example, 111590 + ... + 112169.

It is an arithmetic number, because the mean of its divisors is an integer number (7551900).

Almost surely, 2^64890110 is an apocalyptic number.

64890110 is a deficient number, since it is larger than the sum of its proper divisors (55940290).

64890110 is a wasteful number, since it uses less digits than its factorization.

64890110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223795.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 64890110 is about 8055.4397769458. The cubic root of 64890110 is about 401.8458646896.

Adding to 64890110 its reverse (1109846), we get a palindrome (65999956).

The spelling of 64890110 in words is "sixty-four million, eight hundred ninety thousand, one hundred ten".