14820389 has 2 divisors, whose sum is σ = 14820390. Its totient is φ = 14820388.

The previous prime is 14820371. The next prime is 14820401. The reversal of 14820389 is 98302841.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 4368100 = 3233^2 + 2090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14820389 is a prime.

It is a super-2 number, since 2×14820389² = 439287860222642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14820359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7410194 + 7410195.

It is an arithmetic number, because the mean of its divisors is an integer number (7410195).

Almost surely, 2^14820389 is an apocalyptic number.

It is an amenable number.

14820389 is a deficient number, since it is larger than the sum of its proper divisors (1).

14820389 is an equidigital number, since it uses as much as digits as its factorization.

14820389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 14820389 is about 3849.7258343939. The cubic root of 14820389 is about 245.6328992576.

The spelling of 14820389 in words is "fourteen million, eight hundred twenty thousand, three hundred eighty-nine".