22677973 has 4 divisors (see below), whose sum is σ = 22727628. Its totient is φ = 22628320.

The previous prime is 22677953. The next prime is 22678013. The reversal of 22677973 is 37977622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37977622 = 2 ⋅18988811.

It can be written as a sum of positive squares in 2 ways, for example, as 10125124 + 12552849 = 3182^2 + 3543^2 .

It is a cyclic number.

It is not a de Polignac number, because 22677973 - 2²¹ = 20580821 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 (22677943) 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, 24136 + ... + 25057.

It is an arithmetic number, because the mean of its divisors is an integer number (5681907).

Almost surely, 2^22677973 is an apocalyptic number.

It is an amenable number.

22677973 is a deficient number, since it is larger than the sum of its proper divisors (49655).

22677973 is an equidigital number, since it uses as much as digits as its factorization.

22677973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49654.

The product of its digits is 222264, while the sum is 43.

The square root of 22677973 is about 4762.1395401647. The cubic root of 22677973 is about 283.0532057938.

The spelling of 22677973 in words is "twenty-two million, six hundred seventy-seven thousand, nine hundred seventy-three".