68569590 has 16 divisors (see below), whose sum is σ = 164567088. Its totient is φ = 18285216.

The previous prime is 68569577. The next prime is 68569603. The reversal of 68569590 is 9596586.

It is an interprime number because it is at equal distance from previous prime (68569577) and next prime (68569603).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142797 + ... + 1142856.

It is an arithmetic number, because the mean of its divisors is an integer number (10285443).

Almost surely, 2^68569590 is an apocalyptic number.

68569590 is an abundant number, since it is smaller than the sum of its proper divisors (95997498).

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

68569590 is a wasteful number, since it uses less digits than its factorization.

68569590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285663.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 68569590 is about 8280.6756970672. The cubic root of 68569590 is about 409.3019850356.

The spelling of 68569590 in words is "sixty-eight million, five hundred sixty-nine thousand, five hundred ninety".