22486649 has 2 divisors, whose sum is σ = 22486650. Its totient is φ = 22486648.

The previous prime is 22486643. The next prime is 22486657. The reversal of 22486649 is 94668422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22024249 + 462400 = 4693^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 22486649 - 2²⁰ = 21438073 is a prime.

It is not a weakly prime, because it can be changed into another prime (22486643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11243324 + 11243325.

It is an arithmetic number, because the mean of its divisors is an integer number (11243325).

Almost surely, 2^22486649 is an apocalyptic number.

It is an amenable number.

22486649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22486649 is an equidigital number, since it uses as much as digits as its factorization.

22486649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The square root of 22486649 is about 4742.0089624546. The cubic root of 22486649 is about 282.2549586294.

The spelling of 22486649 in words is "twenty-two million, four hundred eighty-six thousand, six hundred forty-nine".