68958820 has 24 divisors (see below), whose sum is σ = 165501504. Its totient is φ = 23642976.

The previous prime is 68958803. The next prime is 68958833. The reversal of 68958820 is 2885986.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246142 + ... + 246421.

It is an arithmetic number, because the mean of its divisors is an integer number (6895896).

Almost surely, 2^68958820 is an apocalyptic number.

It is an amenable number.

68958820 is an abundant number, since it is smaller than the sum of its proper divisors (96542684).

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

68958820 is a wasteful number, since it uses less digits than its factorization.

68958820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492579 (or 492577 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 68958820 is about 8304.1447482567. The cubic root of 68958820 is about 410.0749813291.

The spelling of 68958820 in words is "sixty-eight million, nine hundred fifty-eight thousand, eight hundred twenty".