422836969 has 3 divisors (see below), whose sum is σ = 422857533. Its totient is φ = 422816406.

The previous prime is 422836961. The next prime is 422837029. The reversal of 422836969 is 969638224.

It is a happy number.

The square root of 422836969 is 20563.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 422836969 - 2³ = 422836961 is a prime.

It is a super-2 number, since 2×422836969² = 357582204706213922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422836961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10282 + ... + 30844.

It is an arithmetic number, because the mean of its divisors is an integer number (140952511).

Almost surely, 2^422836969 is an apocalyptic number.

422836969 is the 20563-rd square number.

422836969 is the 10282-nd centered octagonal number.

It is an amenable number.

422836969 is a deficient number, since it is larger than the sum of its proper divisors (20564).

422836969 is an frugal number, since it uses more digits than its factorization.

422836969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41126 (or 20563 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The cubic root of 422836969 is about 750.5696229671.

Multiplying 422836969 by its sum of digits (49), we get a square (20719011481 = 143941²).

The spelling of 422836969 in words is "four hundred twenty-two million, eight hundred thirty-six thousand, nine hundred sixty-nine".