423898769 has 4 divisors (see below), whose sum is σ = 484455744. Its totient is φ = 363341796.

The previous prime is 423898747. The next prime is 423898793. The reversal of 423898769 is 967898324.

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 423898769 - 2¹⁶ = 423833233 is a prime.

It is a super-2 number, since 2×423898769² = 359380332719430722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423898729) 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, 30278477 + ... + 30278490.

It is an arithmetic number, because the mean of its divisors is an integer number (121113936).

Almost surely, 2^423898769 is an apocalyptic number.

It is an amenable number.

423898769 is a deficient number, since it is larger than the sum of its proper divisors (60556975).

423898769 is an equidigital number, since it uses as much as digits as its factorization.

423898769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60556974.

The product of its digits is 5225472, while the sum is 56.

The square root of 423898769 is about 20588.8020292585. The cubic root of 423898769 is about 751.1973579465.

The spelling of 423898769 in words is "four hundred twenty-three million, eight hundred ninety-eight thousand, seven hundred sixty-nine".