423287569 has 2 divisors, whose sum is σ = 423287570. Its totient is φ = 423287568.

The previous prime is 423287563. The next prime is 423287621. The reversal of 423287569 is 965782324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264225025 + 159062544 = 16255^2 + 12612^2 .

It is a cyclic number.

It is not a de Polignac number, because 423287569 - 2⁵ = 423287537 is a prime.

It is a super-2 number, since 2×423287569² = 358344732139859522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423287563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211643784 + 211643785.

It is an arithmetic number, because the mean of its divisors is an integer number (211643785).

Almost surely, 2^423287569 is an apocalyptic number.

It is an amenable number.

423287569 is a deficient number, since it is larger than the sum of its proper divisors (1).

423287569 is an equidigital number, since it uses as much as digits as its factorization.

423287569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 423287569 is about 20573.9536550465. The cubic root of 423287569 is about 750.8361453940.

The spelling of 423287569 in words is "four hundred twenty-three million, two hundred eighty-seven thousand, five hundred sixty-nine".