63956279 has 2 divisors, whose sum is σ = 63956280. Its totient is φ = 63956278.

The previous prime is 63956251. The next prime is 63956287. The reversal of 63956279 is 97265936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63956279 - 2¹² = 63952183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63956219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31978139 + 31978140.

It is an arithmetic number, because the mean of its divisors is an integer number (31978140).

Almost surely, 2^63956279 is an apocalyptic number.

63956279 is a deficient number, since it is larger than the sum of its proper divisors (1).

63956279 is an equidigital number, since it uses as much as digits as its factorization.

63956279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 63956279 is about 7997.2669706594. The cubic root of 63956279 is about 399.9088938341.

The spelling of 63956279 in words is "sixty-three million, nine hundred fifty-six thousand, two hundred seventy-nine".