64888272 has 60 divisors (see below), whose sum is σ = 182147940. Its totient is φ = 21563904.

The previous prime is 64888253. The next prime is 64888273. The reversal of 64888272 is 27288846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30735936 + 34152336 = 5544^2 + 5844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64888273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79804 + ... + 80612.

It is an arithmetic number, because the mean of its divisors is an integer number (3035799).

Almost surely, 2^64888272 is an apocalyptic number.

It is an amenable number.

64888272 is an abundant number, since it is smaller than the sum of its proper divisors (117259668).

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

64888272 is a wasteful number, since it uses less digits than its factorization.

64888272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380 (or 1371 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 64888272 is about 8055.3256917396. The cubic root of 64888272 is about 401.8420705846.

The spelling of 64888272 in words is "sixty-four million, eight hundred eighty-eight thousand, two hundred seventy-two".