16977589 has 2 divisors, whose sum is σ = 16977590. Its totient is φ = 16977588.

The previous prime is 16977547. The next prime is 16977601. The reversal of 16977589 is 98577961.

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., 11847364 + 5130225 = 3442^2 + 2265^2 .

It is an emirp because it is prime and its reverse (98577961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16977589 - 2¹⁷ = 16846517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16977529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8488794 + 8488795.

It is an arithmetic number, because the mean of its divisors is an integer number (8488795).

Almost surely, 2^16977589 is an apocalyptic number.

It is an amenable number.

16977589 is a deficient number, since it is larger than the sum of its proper divisors (1).

16977589 is an equidigital number, since it uses as much as digits as its factorization.

16977589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The square root of 16977589 is about 4120.3869963876. The cubic root of 16977589 is about 257.0151191981.

The spelling of 16977589 in words is "sixteen million, nine hundred seventy-seven thousand, five hundred eighty-nine".