90068659 has 8 divisors (see below), whose sum is σ = 91203840. Its totient is φ = 88938696.

The previous prime is 90068647. The next prime is 90068681. The reversal of 90068659 is 95686009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90068659 is a prime.

It is a super-2 number, since 2×90068659² = 16224726668116562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90068639) 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, 42114 + ... + 44200.

It is an arithmetic number, because the mean of its divisors is an integer number (11400480).

Almost surely, 2^90068659 is an apocalyptic number.

90068659 is a deficient number, since it is larger than the sum of its proper divisors (1135181).

90068659 is a wasteful number, since it uses less digits than its factorization.

90068659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 90068659 is about 9490.4509376531. The cubic root of 90068659 is about 448.2544044923.

The spelling of 90068659 in words is "ninety million, sixty-eight thousand, six hundred fifty-nine".