68670900 has 108 divisors (see below), whose sum is σ = 220613484. Its totient is φ = 17856000.

The previous prime is 68670787. The next prime is 68670929. The reversal of 68670900 is 907686.

It can be written as a sum of positive squares in 6 ways, for example, as 35354916 + 33315984 = 5946^2 + 5772^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35970 + ... + 37830.

Almost surely, 2^68670900 is an apocalyptic number.

68670900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68670900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110306742).

68670900 is an abundant number, since it is smaller than the sum of its proper divisors (151942584).

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

68670900 is a wasteful number, since it uses less digits than its factorization.

68670900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 68670900 is about 8286.7906936280. The cubic root of 68670900 is about 409.5034639467.

The spelling of 68670900 in words is "sixty-eight million, six hundred seventy thousand, nine hundred".