1099493 has 2 divisors, whose sum is σ = 1099494. Its totient is φ = 1099492.

The previous prime is 1099489. The next prime is 1099499. The reversal of 1099493 is 3949901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605284 + 494209 = 778^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099493 - 2² = 1099489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549746 + 549747.

It is an arithmetic number, because the mean of its divisors is an integer number (549747).

2^1099493 is an apocalyptic number.

It is an amenable number.

1099493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099493 is an equidigital number, since it uses as much as digits as its factorization.

1099493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 1099493 is about 1048.5671175466. The cubic root of 1099493 is about 103.2121495321.

The spelling of 1099493 in words is "one million, ninety-nine thousand, four hundred ninety-three".