64230984 has 24 divisors (see below), whose sum is σ = 173959110. Its totient is φ = 21410304.

The previous prime is 64230967. The next prime is 64230989. The reversal of 64230984 is 48903246.

It is a happy number.

64230984 is a `hidden beast` number, since 642 + 3 + 0 + 9 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34222500 + 30008484 = 5850^2 + 5478^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64230989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445977 + ... + 446120.

Almost surely, 2^64230984 is an apocalyptic number.

It is an amenable number.

64230984 is an abundant number, since it is smaller than the sum of its proper divisors (109728126).

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

64230984 is a wasteful number, since it uses less digits than its factorization.

64230984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892109 (or 892102 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 64230984 is about 8014.4234976697. The cubic root of 64230984 is about 400.4806389010.

It can be divided in two parts, 642 and 30984, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 64230984 in words is "sixty-four million, two hundred thirty thousand, nine hundred eighty-four".