1087822 has 4 divisors (see below), whose sum is σ = 1631736. Its totient is φ = 543910.

The previous prime is 1087817. The next prime is 1087829. The reversal of 1087822 is 2287801.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271954 + ... + 271957.

It is an arithmetic number, because the mean of its divisors is an integer number (407934).

2^1087822 is an apocalyptic number.

1087822 is the 558-th centered heptagonal number.

1087822 is a deficient number, since it is larger than the sum of its proper divisors (543914).

1087822 is an equidigital number, since it uses as much as digits as its factorization.

1087822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543913.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1087822 is about 1042.9870564873. The cubic root of 1087822 is about 102.8456543973.

The spelling of 1087822 in words is "one million, eighty-seven thousand, eight hundred twenty-two".