423683569 has 4 divisors (see below), whose sum is σ = 425691760. Its totient is φ = 421675380.

The previous prime is 423683551. The next prime is 423683573. The reversal of 423683569 is 965386324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423683569 - 2¹¹ = 423681521 is a prime.

It is a super-2 number, since 2×423683569² = 359015533281155522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423683539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003779 + ... + 1004200.

It is an arithmetic number, because the mean of its divisors is an integer number (106422940).

Almost surely, 2^423683569 is an apocalyptic number.

It is an amenable number.

423683569 is a deficient number, since it is larger than the sum of its proper divisors (2008191).

423683569 is a wasteful number, since it uses less digits than its factorization.

423683569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008190.

The product of its digits is 933120, while the sum is 46.

The square root of 423683569 is about 20583.5752239498. The cubic root of 423683569 is about 751.0702167144.

The spelling of 423683569 in words is "four hundred twenty-three million, six hundred eighty-three thousand, five hundred sixty-nine".