434631623 has 2 divisors, whose sum is σ = 434631624. Its totient is φ = 434631622.

The previous prime is 434631601. The next prime is 434631629. The reversal of 434631623 is 326136434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434631623 is a prime.

It is a super-2 number, since 2×434631623² = 377809295423228258, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 434631623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434631629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217315811 + 217315812.

It is an arithmetic number, because the mean of its divisors is an integer number (217315812).

Almost surely, 2^434631623 is an apocalyptic number.

434631623 is a deficient number, since it is larger than the sum of its proper divisors (1).

434631623 is an equidigital number, since it uses as much as digits as its factorization.

434631623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

The square root of 434631623 is about 20847.8205815380. The cubic root of 434631623 is about 757.4845407063.

The spelling of 434631623 in words is "four hundred thirty-four million, six hundred thirty-one thousand, six hundred twenty-three".