64676472 has 96 divisors (see below), whose sum is σ = 192614400. Its totient is φ = 18035136.

The previous prime is 64676411. The next prime is 64676473. The reversal of 64676472 is 27467646.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64676473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49929 + ... + 51207.

It is an arithmetic number, because the mean of its divisors is an integer number (2006400).

Almost surely, 2^64676472 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 64676472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96307200).

64676472 is an abundant number, since it is smaller than the sum of its proper divisors (127937928).

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

64676472 is a wasteful number, since it uses less digits than its factorization.

64676472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1334 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 64676472 is about 8042.1683643157. The cubic root of 64676472 is about 401.4043801869.

The spelling of 64676472 in words is "sixty-four million, six hundred seventy-six thousand, four hundred seventy-two".