90684841 has 8 divisors (see below), whose sum is σ = 98247744. Its totient is φ = 83205840.

The previous prime is 90684799. The next prime is 90684863. The reversal of 90684841 is 14848609.

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 90684841 - 2¹¹ = 90682793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90684794 and 90684803.

It is not an unprimeable number, because it can be changed into a prime (90684871) by changing a digit.

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, 18715 + ... + 23056.

It is an arithmetic number, because the mean of its divisors is an integer number (12280968).

Almost surely, 2^90684841 is an apocalyptic number.

It is an amenable number.

90684841 is a deficient number, since it is larger than the sum of its proper divisors (7562903).

90684841 is a wasteful number, since it uses less digits than its factorization.

90684841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41951.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 90684841 is about 9522.8588669580. The cubic root of 90684841 is about 449.2742887168.

The spelling of 90684841 in words is "ninety million, six hundred eighty-four thousand, eight hundred forty-one".