90860823 has 24 divisors (see below), whose sum is σ = 135782400. Its totient is φ = 58513104.

The previous prime is 90860779. The next prime is 90860839. The reversal of 90860823 is 32806809.

It is not a de Polignac number, because 90860823 - 2⁹ = 90860311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90860843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32058 + ... + 34776.

It is an arithmetic number, because the mean of its divisors is an integer number (5657600).

Almost surely, 2^90860823 is an apocalyptic number.

90860823 is a deficient number, since it is larger than the sum of its proper divisors (44921577).

90860823 is a wasteful number, since it uses less digits than its factorization.

90860823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90860823 is about 9532.0943658778. The cubic root of 90860823 is about 449.5647198347.

The spelling of 90860823 in words is "ninety million, eight hundred sixty thousand, eight hundred twenty-three".