16864361 has 2 divisors, whose sum is σ = 16864362. Its totient is φ = 16864360.

The previous prime is 16864319. The next prime is 16864373. The reversal of 16864361 is 16346861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14776336 + 2088025 = 3844^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 16864361 - 2¹⁴ = 16847977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16864301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8432180 + 8432181.

It is an arithmetic number, because the mean of its divisors is an integer number (8432181).

Almost surely, 2^16864361 is an apocalyptic number.

It is an amenable number.

16864361 is a deficient number, since it is larger than the sum of its proper divisors (1).

16864361 is an equidigital number, since it uses as much as digits as its factorization.

16864361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 16864361 is about 4106.6240392809. The cubic root of 16864361 is about 256.4424771611.

The spelling of 16864361 in words is "sixteen million, eight hundred sixty-four thousand, three hundred sixty-one".