1087393 has 4 divisors (see below), whose sum is σ = 1116820. Its totient is φ = 1057968.

The previous prime is 1087391. The next prime is 1087409. The reversal of 1087393 is 3937801.

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 667489 + 419904 = 817^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087393 - 2¹ = 1087391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087391) 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, 14658 + ... + 14731.

It is an arithmetic number, because the mean of its divisors is an integer number (279205).

2^1087393 is an apocalyptic number.

It is an amenable number.

1087393 is a deficient number, since it is larger than the sum of its proper divisors (29427).

1087393 is an equidigital number, since it uses as much as digits as its factorization.

1087393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29426.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1087393 is about 1042.7813768955. The cubic root of 1087393 is about 102.8321330103.

The spelling of 1087393 in words is "one million, eighty-seven thousand, three hundred ninety-three".