22736477 has 2 divisors, whose sum is σ = 22736478. Its totient is φ = 22736476.

The previous prime is 22736473. The next prime is 22736479. The reversal of 22736477 is 77463722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20259001 + 2477476 = 4501^2 + 1574^2 .

It is a cyclic number.

It is not a de Polignac number, because 22736477 - 2² = 22736473 is a prime.

Together with 22736479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22736477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22736473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11368238 + 11368239.

It is an arithmetic number, because the mean of its divisors is an integer number (11368239).

Almost surely, 2^22736477 is an apocalyptic number.

It is an amenable number.

22736477 is a deficient number, since it is larger than the sum of its proper divisors (1).

22736477 is an equidigital number, since it uses as much as digits as its factorization.

22736477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 38.

The square root of 22736477 is about 4768.2782007765. The cubic root of 22736477 is about 283.2964010300.

The spelling of 22736477 in words is "twenty-two million, seven hundred thirty-six thousand, four hundred seventy-seven".