1099487 has 2 divisors, whose sum is σ = 1099488. Its totient is φ = 1099486.

The previous prime is 1099463. The next prime is 1099489. The reversal of 1099487 is 7849901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099487 - 2¹⁰ = 1098463 is a prime.

Together with 1099489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1099487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099489) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549743 + 549744.

It is an arithmetic number, because the mean of its divisors is an integer number (549744).

2^1099487 is an apocalyptic number.

1099487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099487 is an equidigital number, since it uses as much as digits as its factorization.

1099487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1099487 is about 1048.5642564955. The cubic root of 1099487 is about 103.2119617868.

The spelling of 1099487 in words is "one million, ninety-nine thousand, four hundred eighty-seven".