68199100 has 36 divisors (see below), whose sum is σ = 148677984. Its totient is φ = 27153280.

The previous prime is 68199067. The next prime is 68199107. The reversal of 68199100 is 199186.

It is a super-2 number, since 2×68199100² = 9302234481620000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68199107) 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, 21837 + ... + 24763.

It is an arithmetic number, because the mean of its divisors is an integer number (4129944).

Almost surely, 2^68199100 is an apocalyptic number.

It is an amenable number.

68199100 is an abundant number, since it is smaller than the sum of its proper divisors (80478884).

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

68199100 is a wasteful number, since it uses less digits than its factorization.

68199100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 68199100 is about 8258.2746382038. The cubic root of 68199100 is about 408.5634835646.

The spelling of 68199100 in words is "sixty-eight million, one hundred ninety-nine thousand, one hundred".