1087637 has 4 divisors (see below), whose sum is σ = 1093356. Its totient is φ = 1081920.

The previous prime is 1087631. The next prime is 1087657. The reversal of 1087637 is 7367801.

It is a happy number.

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 763876 + 323761 = 874^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087637 - 2⁴ = 1087621 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 (1087631) 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, 2564 + ... + 2957.

It is an arithmetic number, because the mean of its divisors is an integer number (273339).

2^1087637 is an apocalyptic number.

It is an amenable number.

1087637 is a deficient number, since it is larger than the sum of its proper divisors (5719).

1087637 is an equidigital number, since it uses as much as digits as its factorization.

1087637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1087637 is about 1042.8983651344. The cubic root of 1087637 is about 102.8398239322.

The spelling of 1087637 in words is "one million, eighty-seven thousand, six hundred thirty-seven".