68764307 has 4 divisors (see below), whose sum is σ = 71135520. Its totient is φ = 66393096.

The previous prime is 68764291. The next prime is 68764309. The reversal of 68764307 is 70346786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68764307 - 2⁴ = 68764291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68764309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185563 + ... + 1185620.

It is an arithmetic number, because the mean of its divisors is an integer number (17783880).

Almost surely, 2^68764307 is an apocalyptic number.

68764307 is a deficient number, since it is larger than the sum of its proper divisors (2371213).

68764307 is a wasteful number, since it uses less digits than its factorization.

68764307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371212.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 68764307 is about 8292.4246755699. The cubic root of 68764307 is about 409.6890503704.

The spelling of 68764307 in words is "sixty-eight million, seven hundred sixty-four thousand, three hundred seven".