68764479 has 32 divisors (see below), whose sum is σ = 110260224. Its totient is φ = 37290240.

The previous prime is 68764453. The next prime is 68764483. The reversal of 68764479 is 97446786.

It is not a de Polignac number, because 68764479 - 2⁵ = 68764447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68764489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33507 + ... + 35499.

It is an arithmetic number, because the mean of its divisors is an integer number (3445632).

Almost surely, 2^68764479 is an apocalyptic number.

68764479 is a deficient number, since it is larger than the sum of its proper divisors (41495745).

68764479 is a wasteful number, since it uses less digits than its factorization.

68764479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087.

The product of its digits is 2032128, while the sum is 51.

The square root of 68764479 is about 8292.4350464746. The cubic root of 68764479 is about 409.6893919548.

The spelling of 68764479 in words is "sixty-eight million, seven hundred sixty-four thousand, four hundred seventy-nine".