90688873 has 8 divisors (see below), whose sum is σ = 99173376. Its totient is φ = 82244400.

The previous prime is 90688861. The next prime is 90688879. The reversal of 90688873 is 37888609.

It is a happy number.

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 90688873 - 2¹⁷ = 90557801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90688879) 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, 5161 + ... + 14422.

It is an arithmetic number, because the mean of its divisors is an integer number (12396672).

Almost surely, 2^90688873 is an apocalyptic number.

It is an amenable number.

90688873 is a deficient number, since it is larger than the sum of its proper divisors (8484503).

90688873 is a wasteful number, since it uses less digits than its factorization.

90688873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 90688873 is about 9523.0705657367. The cubic root of 90688873 is about 449.2809471140.

The spelling of 90688873 in words is "ninety million, six hundred eighty-eight thousand, eight hundred seventy-three".