64972284 has 48 divisors (see below), whose sum is σ = 164804640. Its totient is φ = 19802880.

The previous prime is 64972273. The next prime is 64972291. The reversal of 64972284 is 48227946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15094 + ... + 18914.

It is an arithmetic number, because the mean of its divisors is an integer number (3433430).

Almost surely, 2^64972284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64972284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82402320).

64972284 is an abundant number, since it is smaller than the sum of its proper divisors (99832356).

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

64972284 is a wasteful number, since it uses less digits than its factorization.

64972284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950 (or 3948 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 64972284 is about 8060.5386916756. The cubic root of 64972284 is about 402.0154198189.

It can be divided in two parts, 64972 and 284, that added together give a palindrome (65256).

The spelling of 64972284 in words is "sixty-four million, nine hundred seventy-two thousand, two hundred eighty-four".