68345307 has 12 divisors (see below), whose sum is σ = 98818824. Its totient is φ = 45518400.

The previous prime is 68345281. The next prime is 68345311. The reversal of 68345307 is 70354386.

It is a happy number.

68345307 is a `hidden beast` number, since 6 + 8 + 345 + 307 = 666.

It is not a de Polignac number, because 68345307 - 2⁸ = 68345051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68345317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7648 + ... + 13970.

It is an arithmetic number, because the mean of its divisors is an integer number (8234902).

Almost surely, 2^68345307 is an apocalyptic number.

68345307 is a deficient number, since it is larger than the sum of its proper divisors (30473517).

68345307 is a wasteful number, since it uses less digits than its factorization.

68345307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530 (or 7527 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 68345307 is about 8267.1220506292. The cubic root of 68345307 is about 408.8552381722.

The spelling of 68345307 in words is "sixty-eight million, three hundred forty-five thousand, three hundred seven".