63938293 has 4 divisors (see below), whose sum is σ = 63959488. Its totient is φ = 63917100.

The previous prime is 63938261. The next prime is 63938297. The reversal of 63938293 is 39283936.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63938293 - 2⁵ = 63938261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63938297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5133 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (15989872).

Almost surely, 2^63938293 is an apocalyptic number.

It is an amenable number.

63938293 is a deficient number, since it is larger than the sum of its proper divisors (21195).

63938293 is a wasteful number, since it uses less digits than its factorization.

63938293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21194.

The product of its digits is 209952, while the sum is 43.

The square root of 63938293 is about 7996.1423824242. The cubic root of 63938293 is about 399.8714024111.

The spelling of 63938293 in words is "sixty-three million, nine hundred thirty-eight thousand, two hundred ninety-three".