63979499 has 2 divisors, whose sum is σ = 63979500. Its totient is φ = 63979498.

The previous prime is 63979469. The next prime is 63979507. The reversal of 63979499 is 99497936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63979499 - 2¹⁶ = 63913963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63979429) 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, 31989749 + 31989750.

It is an arithmetic number, because the mean of its divisors is an integer number (31989750).

Almost surely, 2^63979499 is an apocalyptic number.

63979499 is a deficient number, since it is larger than the sum of its proper divisors (1).

63979499 is an equidigital number, since it uses as much as digits as its factorization.

63979499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3306744, while the sum is 56.

The square root of 63979499 is about 7998.7185848735. The cubic root of 63979499 is about 399.9572850221.

The spelling of 63979499 in words is "sixty-three million, nine hundred seventy-nine thousand, four hundred ninety-nine".