14949821 has 2 divisors, whose sum is σ = 14949822. Its totient is φ = 14949820.

The previous prime is 14949799. The next prime is 14949863. The reversal of 14949821 is 12894941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14546596 + 403225 = 3814^2 + 635^2 .

It is an emirp because it is prime and its reverse (12894941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14949821 - 2²² = 10755517 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14949721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7474910 + 7474911.

It is an arithmetic number, because the mean of its divisors is an integer number (7474911).

Almost surely, 2^14949821 is an apocalyptic number.

It is an amenable number.

14949821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14949821 is an equidigital number, since it uses as much as digits as its factorization.

14949821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 14949821 is about 3866.4998383551. The cubic root of 14949821 is about 246.3458956391.

The spelling of 14949821 in words is "fourteen million, nine hundred forty-nine thousand, eight hundred twenty-one".