64576476 has 72 divisors (see below), whose sum is σ = 169971984. Its totient is φ = 20655360.

The previous prime is 64576453. The next prime is 64576483. The reversal of 64576476 is 67467546.

It is a happy number.

64576476 is a `hidden beast` number, since 6 + 4 + 576 + 4 + 76 = 666.

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 23 ways as a sum of consecutive naturals, for example, 98566 + ... + 99218.

It is an arithmetic number, because the mean of its divisors is an integer number (2360722).

Almost surely, 2^64576476 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 64576476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84985992).

64576476 is an abundant number, since it is smaller than the sum of its proper divisors (105395508).

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

64576476 is a wasteful number, since it uses less digits than its factorization.

64576476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 766 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 64576476 is about 8035.9489794299. The cubic root of 64576476 is about 401.1974036512.

The spelling of 64576476 in words is "sixty-four million, five hundred seventy-six thousand, four hundred seventy-six".