68825820 has 48 divisors (see below), whose sum is σ = 220243968. Its totient is φ = 15731520.

The previous prime is 68825819. The next prime is 68825831. The reversal of 68825820 is 2852886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81516 + ... + 82355.

It is an arithmetic number, because the mean of its divisors is an integer number (4588416).

Almost surely, 2^68825820 is an apocalyptic number.

68825820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68825820 is an abundant number, since it is smaller than the sum of its proper divisors (151418148).

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

68825820 is a wasteful number, since it uses less digits than its factorization.

68825820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163890 (or 163888 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 68825820 is about 8296.1328340378. The cubic root of 68825820 is about 409.8111761883.

The spelling of 68825820 in words is "sixty-eight million, eight hundred twenty-five thousand, eight hundred twenty".