90541823 has 8 divisors (see below), whose sum is σ = 94787808. Its totient is φ = 86321664.

The previous prime is 90541819. The next prime is 90541877. The reversal of 90541823 is 32814509.

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 90541823 - 2² = 90541819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90541823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90541883) 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, 911 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (11848476).

Almost surely, 2^90541823 is an apocalyptic number.

90541823 is a deficient number, since it is larger than the sum of its proper divisors (4245985).

90541823 is a wasteful number, since it uses less digits than its factorization.

90541823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 90541823 is about 9515.3467093953. The cubic root of 90541823 is about 449.0379827095.

The spelling of 90541823 in words is "ninety million, five hundred forty-one thousand, eight hundred twenty-three".