63345239 has 4 divisors (see below), whose sum is σ = 64213056. Its totient is φ = 62477424.

The previous prime is 63345211. The next prime is 63345263. The reversal of 63345239 is 93254336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63345239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63345199 and 63345208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63345209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433799 + ... + 433944.

It is an arithmetic number, because the mean of its divisors is an integer number (16053264).

Almost surely, 2^63345239 is an apocalyptic number.

63345239 is a deficient number, since it is larger than the sum of its proper divisors (867817).

63345239 is an equidigital number, since it uses as much as digits as its factorization.

63345239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867816.

The product of its digits is 58320, while the sum is 35.

The square root of 63345239 is about 7958.9722326441. The cubic root of 63345239 is about 398.6312361396.

The spelling of 63345239 in words is "sixty-three million, three hundred forty-five thousand, two hundred thirty-nine".