10690489 has 2 divisors, whose sum is σ = 10690490. Its totient is φ = 10690488.

The previous prime is 10690487. The next prime is 10690513. The reversal of 10690489 is 98409601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 2805625 = 2808^2 + 1675^2 .

It is an emirp because it is prime and its reverse (98409601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10690489 - 2¹ = 10690487 is a prime.

It is a super-2 number, since 2×10690489² = 228573110118242, which contains 22 as substring.

Together with 10690487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10690487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5345244 + 5345245.

It is an arithmetic number, because the mean of its divisors is an integer number (5345245).

Almost surely, 2^10690489 is an apocalyptic number.

It is an amenable number.

10690489 is a deficient number, since it is larger than the sum of its proper divisors (1).

10690489 is an equidigital number, since it uses as much as digits as its factorization.

10690489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 10690489 is about 3269.6313247827. The cubic root of 10690489 is about 220.2922356057.

The spelling of 10690489 in words is "ten million, six hundred ninety thousand, four hundred eighty-nine".