64089774 has 72 divisors (see below), whose sum is σ = 167609520. Its totient is φ = 17335296.

The previous prime is 64089769. The next prime is 64089787. The reversal of 64089774 is 47798046.

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 35 ways as a sum of consecutive naturals, for example, 44782 + ... + 46190.

It is an arithmetic number, because the mean of its divisors is an integer number (2327910).

Almost surely, 2^64089774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64089774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83804760).

64089774 is an abundant number, since it is smaller than the sum of its proper divisors (103519746).

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

64089774 is a wasteful number, since it uses less digits than its factorization.

64089774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 64089774 is about 8005.6089087589. The cubic root of 64089774 is about 400.1869417850.

The spelling of 64089774 in words is "sixty-four million, eighty-nine thousand, seven hundred seventy-four".