1087742 has 4 divisors (see below), whose sum is σ = 1631616. Its totient is φ = 543870.

The previous prime is 1087741. The next prime is 1087747. The reversal of 1087742 is 2477801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2477801 = 17 ⋅145753.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271934 + ... + 271937.

It is an arithmetic number, because the mean of its divisors is an integer number (407904).

2^1087742 is an apocalyptic number.

1087742 is a deficient number, since it is larger than the sum of its proper divisors (543874).

1087742 is an equidigital number, since it uses as much as digits as its factorization.

1087742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543873.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1087742 is about 1042.9487043954. The cubic root of 1087742 is about 102.8431331963.

The spelling of 1087742 in words is "one million, eighty-seven thousand, seven hundred forty-two".