90723863 has 8 divisors (see below), whose sum is σ = 93032928. Its totient is φ = 88437024.

The previous prime is 90723859. The next prime is 90723869. The reversal of 90723863 is 36832709.

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 90723863 - 2² = 90723859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90723869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (11629116).

Almost surely, 2^90723863 is an apocalyptic number.

90723863 is a deficient number, since it is larger than the sum of its proper divisors (2309065).

90723863 is a wasteful number, since it uses less digits than its factorization.

90723863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 90723863 is about 9524.9075061126. The cubic root of 90723863 is about 449.3387209014.

The spelling of 90723863 in words is "ninety million, seven hundred twenty-three thousand, eight hundred sixty-three".