14937821 has 2 divisors, whose sum is σ = 14937822. Its totient is φ = 14937820.

The previous prime is 14937803. The next prime is 14937823. The reversal of 14937821 is 12873941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8637721 + 6300100 = 2939^2 + 2510^2 .

It is a cyclic number.

It is not a de Polignac number, because 14937821 - 2¹⁸ = 14675677 is a prime.

Together with 14937823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14937823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7468910 + 7468911.

It is an arithmetic number, because the mean of its divisors is an integer number (7468911).

Almost surely, 2^14937821 is an apocalyptic number.

It is an amenable number.

14937821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14937821 is an equidigital number, since it uses as much as digits as its factorization.

14937821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 14937821 is about 3864.9477357398. The cubic root of 14937821 is about 246.2799652610.

The spelling of 14937821 in words is "fourteen million, nine hundred thirty-seven thousand, eight hundred twenty-one".