22299077 has 2 divisors, whose sum is σ = 22299078. Its totient is φ = 22299076.

The previous prime is 22299073. The next prime is 22299097. The reversal of 22299077 is 77099222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22287841 + 11236 = 4721^2 + 106^2 .

It is a cyclic number.

It is not a de Polignac number, because 22299077 - 2² = 22299073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22299077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22299071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11149538 + 11149539.

It is an arithmetic number, because the mean of its divisors is an integer number (11149539).

Almost surely, 2^22299077 is an apocalyptic number.

It is an amenable number.

22299077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22299077 is an equidigital number, since it uses as much as digits as its factorization.

22299077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 22299077 is about 4722.1898521766. The cubic root of 22299077 is about 281.4679579938.

It can be divided in two parts, 222 and 99077, that added together give a palindrome (99299).

The spelling of 22299077 in words is "twenty-two million, two hundred ninety-nine thousand, seventy-seven".