64784466 has 12 divisors (see below), whose sum is σ = 140366382. Its totient is φ = 21594816.

The previous prime is 64784459. The next prime is 64784539. The reversal of 64784466 is 66448746.

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 7403841 = 7575^2 + 2721^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1799551 + ... + 1799586.

Almost surely, 2^64784466 is an apocalyptic number.

64784466 is an abundant number, since it is smaller than the sum of its proper divisors (75581916).

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

64784466 is a wasteful number, since it uses less digits than its factorization.

64784466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599145 (or 3599142 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 64784466 is about 8048.8797978352. The cubic root of 64784466 is about 401.6276718934.

The spelling of 64784466 in words is "sixty-four million, seven hundred eighty-four thousand, four hundred sixty-six".