64845476 has 6 divisors (see below), whose sum is σ = 113479590. Its totient is φ = 32422736.

The previous prime is 64845467. The next prime is 64845503. The reversal of 64845476 is 67454846.

It can be written as a sum of positive squares in only one way, i.e., 42510400 + 22335076 = 6520^2 + 4726^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8105681 + ... + 8105688.

It is an arithmetic number, because the mean of its divisors is an integer number (18913265).

Almost surely, 2^64845476 is an apocalyptic number.

It is an amenable number.

64845476 is a deficient number, since it is larger than the sum of its proper divisors (48634114).

64845476 is a wasteful number, since it uses less digits than its factorization.

64845476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16211373 (or 16211371 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 64845476 is about 8052.6688743546. The cubic root of 64845476 is about 401.7537083643.

The spelling of 64845476 in words is "sixty-four million, eight hundred forty-five thousand, four hundred seventy-six".