64880394 has 8 divisors (see below), whose sum is σ = 129760800. Its totient is φ = 21626796.

The previous prime is 64880369. The next prime is 64880423. The reversal of 64880394 is 49308846.

It is a sphenic number, since it is the product of 3 distinct primes.

64880394 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5406694 + ... + 5406705.

It is an arithmetic number, because the mean of its divisors is an integer number (16220100).

Almost surely, 2^64880394 is an apocalyptic number.

64880394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64880394 is a wasteful number, since it uses less digits than its factorization.

64880394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10813404.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 64880394 is about 8054.8366836330. The cubic root of 64880394 is about 401.8258075535.

The spelling of 64880394 in words is "sixty-four million, eight hundred eighty thousand, three hundred ninety-four".