423197629 has 2 divisors, whose sum is σ = 423197630. Its totient is φ = 423197628.

The previous prime is 423197611. The next prime is 423197641. The reversal of 423197629 is 926791324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411156729 + 12040900 = 20277^2 + 3470^2 .

It is a cyclic number.

It is not a de Polignac number, because 423197629 - 2²⁵ = 389643197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423197669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211598814 + 211598815.

It is an arithmetic number, because the mean of its divisors is an integer number (211598815).

Almost surely, 2^423197629 is an apocalyptic number.

It is an amenable number.

423197629 is a deficient number, since it is larger than the sum of its proper divisors (1).

423197629 is an equidigital number, since it uses as much as digits as its factorization.

423197629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 423197629 is about 20571.7677655568. The cubic root of 423197629 is about 750.7829624900.

The spelling of 423197629 in words is "four hundred twenty-three million, one hundred ninety-seven thousand, six hundred twenty-nine".