68807907 has 24 divisors (see below), whose sum is σ = 118582800. Its totient is φ = 39318048.

The previous prime is 68807897. The next prime is 68807957. The reversal of 68807907 is 70970886.

It is not a de Polignac number, because 68807907 - 2²² = 64613603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68807957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24682 + ... + 27327.

It is an arithmetic number, because the mean of its divisors is an integer number (4940950).

Almost surely, 2^68807907 is an apocalyptic number.

68807907 is a deficient number, since it is larger than the sum of its proper divisors (49774893).

68807907 is a wasteful number, since it uses less digits than its factorization.

68807907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52032 (or 52019 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 68807907 is about 8295.0531643866. The cubic root of 68807907 is about 409.7756198397.

The spelling of 68807907 in words is "sixty-eight million, eight hundred seven thousand, nine hundred seven".