63960779 has 16 divisors (see below), whose sum is σ = 67465440. Its totient is φ = 60579840.

The previous prime is 63960763. The next prime is 63960791. The reversal of 63960779 is 97706936.

It is a cyclic number.

It is not a de Polignac number, because 63960779 - 2⁴ = 63960763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63960179) 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 15 ways as a sum of consecutive naturals, for example, 331307 + ... + 331499.

It is an arithmetic number, because the mean of its divisors is an integer number (4216590).

Almost surely, 2^63960779 is an apocalyptic number.

63960779 is a deficient number, since it is larger than the sum of its proper divisors (3504661).

63960779 is a wasteful number, since it uses less digits than its factorization.

63960779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 63960779 is about 7997.5483118266. The cubic root of 63960779 is about 399.9182728862.

The spelling of 63960779 in words is "sixty-three million, nine hundred sixty thousand, seven hundred seventy-nine".