14992821 has 6 divisors (see below), whose sum is σ = 21656310. Its totient is φ = 9995208.

The previous prime is 14992811. The next prime is 14992823. The reversal of 14992821 is 12829941.

It can be written as a sum of positive squares in only one way, i.e., 13793796 + 1199025 = 3714^2 + 1095^2 .

It is not a de Polignac number, because 14992821 - 2⁹ = 14992309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14992823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 832926 + ... + 832943.

It is an arithmetic number, because the mean of its divisors is an integer number (3609385).

Almost surely, 2^14992821 is an apocalyptic number.

It is an amenable number.

14992821 is a deficient number, since it is larger than the sum of its proper divisors (6663489).

14992821 is a wasteful number, since it uses less digits than its factorization.

14992821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665875 (or 1665872 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 14992821 is about 3872.0564303739. The cubic root of 14992821 is about 246.5818568514.

The spelling of 14992821 in words is "fourteen million, nine hundred ninety-two thousand, eight hundred twenty-one".