63390839 has 8 divisors (see below), whose sum is σ = 66690000. Its totient is φ = 60165952.

The previous prime is 63390823. The next prime is 63390851. The reversal of 63390839 is 93809336.

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

It is not a de Polignac number, because 63390839 - 2⁴ = 63390823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63390796 and 63390805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63390869) 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, 16814 + ... + 20235.

It is an arithmetic number, because the mean of its divisors is an integer number (8336250).

Almost surely, 2^63390839 is an apocalyptic number.

63390839 is a deficient number, since it is larger than the sum of its proper divisors (3299161).

63390839 is a wasteful number, since it uses less digits than its factorization.

63390839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37137.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 63390839 is about 7961.8364087690. The cubic root of 63390839 is about 398.7268667115.

The spelling of 63390839 in words is "sixty-three million, three hundred ninety thousand, eight hundred thirty-nine".