1089682837 has 4 divisors (see below), whose sum is σ = 1089750220. Its totient is φ = 1089615456.

The previous prime is 1089682831. The next prime is 1089682861. The reversal of 1089682837 is 7382869801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7382869801 = 1583 ⋅4663847.

It can be written as a sum of positive squares in 2 ways, for example, as 864712836 + 224970001 = 29406^2 + 14999^2 .

It is a 3-Lehmer number, since φ(1089682837) divides (1089682837-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1089682837 - 2⁷ = 1089682709 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 (1089682831) 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, 6739 + ... + 47167.

It is an arithmetic number, because the mean of its divisors is an integer number (272437555).

It is a Poulet number, since it divides 2^1089682836-1.

Almost surely, 2^1089682837 is an apocalyptic number.

1089682837 is the 26953-rd pentagonal number.

It is an amenable number.

1089682837 is a deficient number, since it is larger than the sum of its proper divisors (67383).

1089682837 is an equidigital number, since it uses as much as digits as its factorization.

1089682837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67382.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1089682837 is about 33010.3443938412. The cubic root of 1089682837 is about 1029.0426385666.

The spelling of 1089682837 in words is "one billion, eighty-nine million, six hundred eighty-two thousand, eight hundred thirty-seven".