63679823 has 2 divisors, whose sum is σ = 63679824. Its totient is φ = 63679822.

The previous prime is 63679817. The next prime is 63679843. The reversal of 63679823 is 32897636.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63679823 - 2²⁴ = 46902607 is a prime.

It is a super-2 number, since 2×63679823² = 8110239714622658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63679813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31839911 + 31839912.

It is an arithmetic number, because the mean of its divisors is an integer number (31839912).

Almost surely, 2^63679823 is an apocalyptic number.

63679823 is a deficient number, since it is larger than the sum of its proper divisors (1).

63679823 is an equidigital number, since it uses as much as digits as its factorization.

63679823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 63679823 is about 7979.9638470359. The cubic root of 63679823 is about 399.3318491408.

The spelling of 63679823 in words is "sixty-three million, six hundred seventy-nine thousand, eight hundred twenty-three".