63798731 has 2 divisors, whose sum is σ = 63798732. Its totient is φ = 63798730.

The previous prime is 63798727. The next prime is 63798733. The reversal of 63798731 is 13789736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63798731 - 2² = 63798727 is a prime.

It is a super-2 number, since 2×63798731² = 8140556154420722, which contains 22 as substring.

Together with 63798733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63798733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31899365 + 31899366.

It is an arithmetic number, because the mean of its divisors is an integer number (31899366).

Almost surely, 2^63798731 is an apocalyptic number.

63798731 is a deficient number, since it is larger than the sum of its proper divisors (1).

63798731 is an equidigital number, since it uses as much as digits as its factorization.

63798731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 63798731 is about 7987.4107819743. The cubic root of 63798731 is about 399.5802492607.

The spelling of 63798731 in words is "sixty-three million, seven hundred ninety-eight thousand, seven hundred thirty-one".