68829885 has 64 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 35138880.

The previous prime is 68829883. The next prime is 68829911. The reversal of 68829885 is 58892886.

It is not a de Polignac number, because 68829885 - 2¹ = 68829883 is a prime.

It is a super-2 number, since 2×68829885² = 9475106138226450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68829883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 412072 + ... + 412238.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^68829885 is an apocalyptic number.

It is an amenable number.

68829885 is a deficient number, since it is larger than the sum of its proper divisors (58903875).

68829885 is a wasteful number, since it uses less digits than its factorization.

68829885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 289 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 68829885 is about 8296.3778240868. The cubic root of 68829885 is about 409.8192441374.

The spelling of 68829885 in words is "sixty-eight million, eight hundred twenty-nine thousand, eight hundred eighty-five".