18482977 has 2 divisors, whose sum is σ = 18482978. Its totient is φ = 18482976.

The previous prime is 18482951. The next prime is 18482983. The reversal of 18482977 is 77928481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18352656 + 130321 = 4284^2 + 361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18482977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18482917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9241488 + 9241489.

It is an arithmetic number, because the mean of its divisors is an integer number (9241489).

Almost surely, 2^18482977 is an apocalyptic number.

It is an amenable number.

18482977 is a deficient number, since it is larger than the sum of its proper divisors (1).

18482977 is an equidigital number, since it uses as much as digits as its factorization.

18482977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 18482977 is about 4299.1832945340. The cubic root of 18482977 is about 264.3974776664.

The spelling of 18482977 in words is "eighteen million, four hundred eighty-two thousand, nine hundred seventy-seven".