423130693 has 2 divisors, whose sum is σ = 423130694. Its totient is φ = 423130692.

The previous prime is 423130667. The next prime is 423130723. The reversal of 423130693 is 396031324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391960804 + 31169889 = 19798^2 + 5583^2 .

It is a cyclic number.

It is not a de Polignac number, because 423130693 - 2²¹ = 421033541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423130093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211565346 + 211565347.

It is an arithmetic number, because the mean of its divisors is an integer number (211565347).

Almost surely, 2^423130693 is an apocalyptic number.

It is an amenable number.

423130693 is a deficient number, since it is larger than the sum of its proper divisors (1).

423130693 is an equidigital number, since it uses as much as digits as its factorization.

423130693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 423130693 is about 20570.1408113800. The cubic root of 423130693 is about 750.7433773138.

The spelling of 423130693 in words is "four hundred twenty-three million, one hundred thirty thousand, six hundred ninety-three".