68669586 has 16 divisors (see below), whose sum is σ = 152599200. Its totient is φ = 22889844.

The previous prime is 68669561. The next prime is 68669663. The reversal of 68669586 is 68596686.

It is a super-2 number, since 2×68669586² = 9431024082822792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1271659 = 68669586 / (6 + 8 + 6 + 6 + 9 + 5 + 8 + 6).

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, 635776 + ... + 635883.

It is an arithmetic number, because the mean of its divisors is an integer number (9537450).

Almost surely, 2^68669586 is an apocalyptic number.

68669586 is an abundant number, since it is smaller than the sum of its proper divisors (83929614).

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

68669586 is a wasteful number, since it uses less digits than its factorization.

68669586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271670 (or 1271664 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 68669586 is about 8286.7114104450. The cubic root of 68669586 is about 409.5008520156.

Subtracting from 68669586 its reverse (68596686), we obtain a square (72900 = 270²).

The spelling of 68669586 in words is "sixty-eight million, six hundred sixty-nine thousand, five hundred eighty-six".