68955860 has 24 divisors (see below), whose sum is σ = 145097736. Its totient is φ = 27527040.

The previous prime is 68955841. The next prime is 68955869. The reversal of 68955860 is 6855986.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12945604 + 56010256 = 3598^2 + 7484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68955869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7634 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (6045739).

Almost surely, 2^68955860 is an apocalyptic number.

It is an amenable number.

68955860 is an abundant number, since it is smaller than the sum of its proper divisors (76141876).

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

68955860 is a wasteful number, since it uses less digits than its factorization.

68955860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923 (or 6921 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 68955860 is about 8303.9665220905. The cubic root of 68955860 is about 410.0691138693.

The spelling of 68955860 in words is "sixty-eight million, nine hundred fifty-five thousand, eight hundred sixty".