22000477 has 8 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 20963040.

The previous prime is 22000463. The next prime is 22000487. The reversal of 22000477 is 77400022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22000477 - 2¹⁵ = 21967709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4477 + ... + 8002.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^22000477 is an apocalyptic number.

It is an amenable number.

22000477 is a deficient number, since it is larger than the sum of its proper divisors (1062563).

22000477 is a wasteful number, since it uses less digits than its factorization.

22000477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12563.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 22000477 is about 4690.4666079187. The cubic root of 22000477 is about 280.2059581611.

Adding to 22000477 its reverse (77400022), we get a palindrome (99400499).

The spelling of 22000477 in words is "twenty-two million, four hundred seventy-seven", and thus it is an aban number.