18950023 has 2 divisors, whose sum is σ = 18950024. Its totient is φ = 18950022.

The previous prime is 18950003. The next prime is 18950027. The reversal of 18950023 is 32005981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18950023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18949973 and 18950000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18950027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9475011 + 9475012.

It is an arithmetic number, because the mean of its divisors is an integer number (9475012).

Almost surely, 2^18950023 is an apocalyptic number.

18950023 is a deficient number, since it is larger than the sum of its proper divisors (1).

18950023 is an equidigital number, since it uses as much as digits as its factorization.

18950023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 18950023 is about 4353.1624136942. The cubic root of 18950023 is about 266.6059967882.

The spelling of 18950023 in words is "eighteen million, nine hundred fifty thousand, twenty-three".