434190623 has 2 divisors, whose sum is σ = 434190624. Its totient is φ = 434190622.

The previous prime is 434190587. The next prime is 434190643. The reversal of 434190623 is 326091434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 434190623 - 2¹⁴ = 434174239 is a prime.

It is a super-2 number, since 2×434190623² = 377042994202256258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 434190623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434190643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217095311 + 217095312.

It is an arithmetic number, because the mean of its divisors is an integer number (217095312).

Almost surely, 2^434190623 is an apocalyptic number.

434190623 is a deficient number, since it is larger than the sum of its proper divisors (1).

434190623 is an equidigital number, since it uses as much as digits as its factorization.

434190623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 434190623 is about 20837.2412521428. The cubic root of 434190623 is about 757.2282595168.

The spelling of 434190623 in words is "four hundred thirty-four million, one hundred ninety thousand, six hundred twenty-three".