90894689 has 8 divisors (see below), whose sum is σ = 99839040. Its totient is φ = 82366416.

The previous prime is 90894677. The next prime is 90894691. The reversal of 90894689 is 98649809.

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

It is a cyclic number.

It is not a de Polignac number, because 90894689 - 2⁴ = 90894673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90894689.

It is not an unprimeable number, because it can be changed into a prime (90894649) 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, 103562 + ... + 104435.

It is an arithmetic number, because the mean of its divisors is an integer number (12479880).

Almost surely, 2^90894689 is an apocalyptic number.

It is an amenable number.

90894689 is a deficient number, since it is larger than the sum of its proper divisors (8944351).

90894689 is a wasteful number, since it uses less digits than its factorization.

90894689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208039.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 90894689 is about 9533.8706200577. The cubic root of 90894689 is about 449.6205674014.

The spelling of 90894689 in words is "ninety million, eight hundred ninety-four thousand, six hundred eighty-nine".