74023189 has 2 divisors, whose sum is σ = 74023190. Its totient is φ = 74023188.

The previous prime is 74023181. The next prime is 74023247. The reversal of 74023189 is 98132047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 8898289 = 8070^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 74023189 - 2³ = 74023181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74023181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37011594 + 37011595.

It is an arithmetic number, because the mean of its divisors is an integer number (37011595).

Almost surely, 2^74023189 is an apocalyptic number.

It is an amenable number.

74023189 is a deficient number, since it is larger than the sum of its proper divisors (1).

74023189 is an equidigital number, since it uses as much as digits as its factorization.

74023189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 74023189 is about 8603.6729947157. The cubic root of 74023189 is about 419.8774945054.

The spelling of 74023189 in words is "seventy-four million, twenty-three thousand, one hundred eighty-nine".