22820003 has 4 divisors (see below), whose sum is σ = 22843128. Its totient is φ = 22796880.

The previous prime is 22819991. The next prime is 22820023. The reversal of 22820003 is 30002822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22820003 - 2⁴ = 22819987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22820023) 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, 10013 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (5710782).

Almost surely, 2^22820003 is an apocalyptic number.

22820003 is a deficient number, since it is larger than the sum of its proper divisors (23125).

22820003 is a wasteful number, since it uses less digits than its factorization.

22820003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23124.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22820003 is about 4777.0286790012. The cubic root of 22820003 is about 283.6428882787.

Adding to 22820003 its reverse (30002822), we get a palindrome (52822825).

The spelling of 22820003 in words is "twenty-two million, eight hundred twenty thousand, three".