22006949 has 2 divisors, whose sum is σ = 22006950. Its totient is φ = 22006948.

The previous prime is 22006939. The next prime is 22006967. The reversal of 22006949 is 94960022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 9721924 = 3505^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 22006949 - 2¹² = 22002853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22006939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11003474 + 11003475.

It is an arithmetic number, because the mean of its divisors is an integer number (11003475).

Almost surely, 2^22006949 is an apocalyptic number.

It is an amenable number.

22006949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22006949 is an equidigital number, since it uses as much as digits as its factorization.

22006949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 22006949 is about 4691.1564672264. The cubic root of 22006949 is about 280.2334320376.

The spelling of 22006949 in words is "twenty-two million, six thousand, nine hundred forty-nine".