4022969 has 4 divisors (see below), whose sum is σ = 4027380. Its totient is φ = 4018560.

The previous prime is 4022959. The next prime is 4022981. The reversal of 4022969 is 9692204.

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 can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 2839225 = 1088^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 4022969 - 2¹² = 4018873 is a prime.

It is a super-2 number, since 2×4022969² = 32368559149922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4022929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (1006845).

Almost surely, 2^4022969 is an apocalyptic number.

It is an amenable number.

4022969 is a deficient number, since it is larger than the sum of its proper divisors (4411).

4022969 is a wasteful number, since it uses less digits than its factorization.

4022969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 4022969 is about 2005.7340302243. The cubic root of 4022969 is about 159.0433672562.

The spelling of 4022969 in words is "four million, twenty-two thousand, nine hundred sixty-nine".