68646885 has 8 divisors (see below), whose sum is σ = 109835040. Its totient is φ = 36611664.

The previous prime is 68646871. The next prime is 68646887. The reversal of 68646885 is 58864686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68646885 - 2⁷ = 68646757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68646887) 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, 2288215 + ... + 2288244.

It is an arithmetic number, because the mean of its divisors is an integer number (13729380).

Almost surely, 2^68646885 is an apocalyptic number.

It is an amenable number.

68646885 is a deficient number, since it is larger than the sum of its proper divisors (41188155).

68646885 is a wasteful number, since it uses less digits than its factorization.

68646885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576467.

The product of its digits is 2211840, while the sum is 51.

The square root of 68646885 is about 8285.3415741296. The cubic root of 68646885 is about 409.4557223643.

It can be divided in two parts, 68 and 646885, that added together give a triangular number (646953 = T₁₁₃₇).

The spelling of 68646885 in words is "sixty-eight million, six hundred forty-six thousand, eight hundred eighty-five".