90174023 has 2 divisors, whose sum is σ = 90174024. Its totient is φ = 90174022.

The previous prime is 90174011. The next prime is 90174031. The reversal of 90174023 is 32047109.

It is a strong prime.

It is an emirp because it is prime and its reverse (32047109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90174023 - 2⁶ = 90173959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90173983 and 90174001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90174083) 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 as a sum of consecutive naturals, namely, 45087011 + 45087012.

It is an arithmetic number, because the mean of its divisors is an integer number (45087012).

Almost surely, 2^90174023 is an apocalyptic number.

90174023 is a deficient number, since it is larger than the sum of its proper divisors (1).

90174023 is an equidigital number, since it uses as much as digits as its factorization.

90174023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 90174023 is about 9496.0003685762. Note that the first 3 decimals coincide. The cubic root of 90174023 is about 448.4291285038.

It can be divided in two parts, 901740 and 23, that multiplied together give a triangular number (20740020 = T₆₄₄₀).

The spelling of 90174023 in words is "ninety million, one hundred seventy-four thousand, twenty-three".