68944986 has 64 divisors (see below), whose sum is σ = 171711360. Its totient is φ = 20321280.

The previous prime is 68944957. The next prime is 68944999.

68944986 is a `hidden beast` number, since 68 + 94 + 498 + 6 = 666.

68944986 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×68944986² = 9506822189080392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20410 + ... + 23546.

It is an arithmetic number, because the mean of its divisors is an integer number (2682990).

Almost surely, 2^68944986 is an apocalyptic number.

68944986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68944986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85855680).

68944986 is an abundant number, since it is smaller than the sum of its proper divisors (102766374).

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

68944986 is a wasteful number, since it uses less digits than its factorization.

68944986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196 (or 3190 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 68944986 is about 8303.3117489349. The cubic root of 68944986 is about 410.0475574420.

The spelling of 68944986 in words is "sixty-eight million, nine hundred forty-four thousand, nine hundred eighty-six".