68764605 has 32 divisors (see below), whose sum is σ = 135416064. Its totient is φ = 29016576.

The previous prime is 68764583. The next prime is 68764621. The reversal of 68764605 is 50646786.

It is a happy number.

It is not a de Polignac number, because 68764605 - 2⁵ = 68764573 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 23824 + ... + 26553.

It is an arithmetic number, because the mean of its divisors is an integer number (4231752).

Almost surely, 2^68764605 is an apocalyptic number.

68764605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68764605 is a deficient number, since it is larger than the sum of its proper divisors (66651459).

68764605 is a wasteful number, since it uses less digits than its factorization.

68764605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50405.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 68764605 is about 8292.4426437570. The cubic root of 68764605 is about 409.6896421849.

The spelling of 68764605 in words is "sixty-eight million, seven hundred sixty-four thousand, six hundred five".