64303881 has 8 divisors (see below), whose sum is σ = 85841760. Its totient is φ = 42817632.

The previous prime is 64303873. The next prime is 64303901. The reversal of 64303881 is 18830346.

64303881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 64303881 - 2³ = 64303873 is a prime.

It is a super-2 number, since 2×64303881² = 8269978223324322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64303081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9900 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (10730220).

Almost surely, 2^64303881 is an apocalyptic number.

It is an amenable number.

64303881 is a deficient number, since it is larger than the sum of its proper divisors (21537879).

64303881 is a wasteful number, since it uses less digits than its factorization.

64303881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25815.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 64303881 is about 8018.9700710253. The cubic root of 64303881 is about 400.6320860586.

The spelling of 64303881 in words is "sixty-four million, three hundred three thousand, eight hundred eighty-one".