63345331 has 8 divisors (see below), whose sum is σ = 73935360. Its totient is φ = 53140488.

The previous prime is 63345329. The next prime is 63345343. The reversal of 63345331 is 13354336.

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

It is a cyclic number.

It is not a de Polignac number, because 63345331 - 2¹ = 63345329 is a prime.

It is a super-2 number, since 2×63345331² = 8025261918999122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63345331.

It is not an unprimeable number, because it can be changed into a prime (63345311) 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, 95941 + ... + 96598.

It is an arithmetic number, because the mean of its divisors is an integer number (9241920).

Almost surely, 2^63345331 is an apocalyptic number.

63345331 is a deficient number, since it is larger than the sum of its proper divisors (10590029).

63345331 is a wasteful number, since it uses less digits than its factorization.

63345331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192593.

The product of its digits is 9720, while the sum is 28.

The square root of 63345331 is about 7958.9780122827. The cubic root of 63345331 is about 398.6314291246.

Adding to 63345331 its reverse (13354336), we get a palindrome (76699667).

The spelling of 63345331 in words is "sixty-three million, three hundred forty-five thousand, three hundred thirty-one".