90920685 has 8 divisors (see below), whose sum is σ = 145473120. Its totient is φ = 48491024.

The previous prime is 90920677. The next prime is 90920693. The reversal of 90920685 is 58602909.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90920677) and next prime (90920693).

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 90920685 - 2³ = 90920677 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030675 + ... + 3030704.

It is an arithmetic number, because the mean of its divisors is an integer number (18184140).

Almost surely, 2^90920685 is an apocalyptic number.

It is an amenable number.

90920685 is a deficient number, since it is larger than the sum of its proper divisors (54552435).

90920685 is a wasteful number, since it uses less digits than its factorization.

90920685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061387.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 90920685 is about 9535.2338723285. The cubic root of 90920685 is about 449.6634273392.

The spelling of 90920685 in words is "ninety million, nine hundred twenty thousand, six hundred eighty-five".