10887493 has 4 divisors (see below), whose sum is σ = 10905868. Its totient is φ = 10869120.

The previous prime is 10887473. The next prime is 10887511. The reversal of 10887493 is 39478801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 9628609 = 1122^2 + 3103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10887493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10887403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8268 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (2726467).

Almost surely, 2^10887493 is an apocalyptic number.

It is an amenable number.

10887493 is a deficient number, since it is larger than the sum of its proper divisors (18375).

10887493 is an equidigital number, since it uses as much as digits as its factorization.

10887493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 10887493 is about 3299.6201296513. The cubic root of 10887493 is about 221.6371870521.

The spelling of 10887493 in words is "ten million, eight hundred eighty-seven thousand, four hundred ninety-three".