64493484 has 36 divisors (see below), whose sum is σ = 165412632. Its totient is φ = 19543040.

The previous prime is 64493483. The next prime is 64493491. The reversal of 64493484 is 48439446.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (64493483) 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, 20757 + ... + 23660.

Almost surely, 2^64493484 is an apocalyptic number.

It is an amenable number.

64493484 is an abundant number, since it is smaller than the sum of its proper divisors (100919148).

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

64493484 is a wasteful number, since it uses less digits than its factorization.

64493484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44446 (or 44433 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 64493484 is about 8030.7835234179. The cubic root of 64493484 is about 401.0254604970.

The spelling of 64493484 in words is "sixty-four million, four hundred ninety-three thousand, four hundred eighty-four".