423610769 has 2 divisors, whose sum is σ = 423610770. Its totient is φ = 423610768.

The previous prime is 423610739. The next prime is 423610807. The reversal of 423610769 is 967016324.

It is an a-pointer prime, because the next prime (423610807) can be obtained adding 423610769 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312582400 + 111028369 = 17680^2 + 10537^2 .

It is a cyclic number.

It is not a de Polignac number, because 423610769 - 2²⁸ = 155175313 is a prime.

It is a super-2 number, since 2×423610769² = 358892167225542722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (423610739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211805384 + 211805385.

It is an arithmetic number, because the mean of its divisors is an integer number (211805385).

Almost surely, 2^423610769 is an apocalyptic number.

It is an amenable number.

423610769 is a deficient number, since it is larger than the sum of its proper divisors (1).

423610769 is an equidigital number, since it uses as much as digits as its factorization.

423610769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 423610769 is about 20581.8067477080. The cubic root of 423610769 is about 751.0271963664.

The spelling of 423610769 in words is "four hundred twenty-three million, six hundred ten thousand, seven hundred sixty-nine".