64332331 has 8 divisors (see below), whose sum is σ = 75087360. Its totient is φ = 53968488.

The previous prime is 64332329. The next prime is 64332341. The reversal of 64332331 is 13323346.

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

It is not a de Polignac number, because 64332331 - 2¹ = 64332329 is a prime.

It is a super-2 number, since 2×64332331² = 8277297623787122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64332296 and 64332305.

It is not an unprimeable number, because it can be changed into a prime (64332341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97441 + ... + 98098.

It is an arithmetic number, because the mean of its divisors is an integer number (9385920).

Almost surely, 2^64332331 is an apocalyptic number.

64332331 is a deficient number, since it is larger than the sum of its proper divisors (10755029).

64332331 is a wasteful number, since it uses less digits than its factorization.

64332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195593.

The product of its digits is 3888, while the sum is 25.

The square root of 64332331 is about 8020.7437934396. The cubic root of 64332331 is about 400.6911613023.

Adding to 64332331 its reverse (13323346), we get a palindrome (77655677).

The spelling of 64332331 in words is "sixty-four million, three hundred thirty-two thousand, three hundred thirty-one".