68077307 has 4 divisors (see below), whose sum is σ = 68095440. Its totient is φ = 68059176.

The previous prime is 68077283. The next prime is 68077313. The reversal of 68077307 is 70377086.

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 68077307 - 2¹² = 68073211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68077357) 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, 1103 + ... + 11720.

It is an arithmetic number, because the mean of its divisors is an integer number (17023860).

Almost surely, 2^68077307 is an apocalyptic number.

68077307 is a deficient number, since it is larger than the sum of its proper divisors (18133).

68077307 is a wasteful number, since it uses less digits than its factorization.

68077307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18132.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 68077307 is about 8250.8973451377. The cubic root of 68077307 is about 408.3201283341.

The spelling of 68077307 in words is "sixty-eight million, seventy-seven thousand, three hundred seven".