68698818 has 12 divisors (see below), whose sum is σ = 148847478. Its totient is φ = 22899600.

The previous prime is 68698811. The next prime is 68698823. The reversal of 68698818 is 81889686.

It can be written as a sum of positive squares in only one way, i.e., 67026969 + 1671849 = 8187^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (68698811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1908283 + ... + 1908318.

Almost surely, 2^68698818 is an apocalyptic number.

68698818 is an abundant number, since it is smaller than the sum of its proper divisors (80148660).

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

68698818 is a wasteful number, since it uses less digits than its factorization.

68698818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816609 (or 3816606 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 68698818 is about 8288.4750105191. The cubic root of 68698818 is about 409.5589506656.

The spelling of 68698818 in words is "sixty-eight million, six hundred ninety-eight thousand, eight hundred eighteen".