68799906 has 24 divisors (see below), whose sum is σ = 170361984. Its totient is φ = 19657080.

The previous prime is 68799889. The next prime is 68799953. The reversal of 68799906 is 60999786.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272890 + ... + 273141.

It is an arithmetic number, because the mean of its divisors is an integer number (7098416).

Almost surely, 2^68799906 is an apocalyptic number.

68799906 is an abundant number, since it is smaller than the sum of its proper divisors (101562078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68799906 is a wasteful number, since it uses less digits than its factorization.

68799906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546046 (or 546043 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 68799906 is about 8294.5708749760. The cubic root of 68799906 is about 409.7597362881.

The spelling of 68799906 in words is "sixty-eight million, seven hundred ninety-nine thousand, nine hundred six".