891130 has 8 divisors (see below), whose sum is σ = 1604052. Its totient is φ = 356448.

The previous prime is 891103. The next prime is 891133. The reversal of 891130 is 31198.

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 9409 = 939^2 + 97^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×891130² = 1588225353800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (891133) 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, 44547 + ... + 44566.

2⁸⁹¹¹³⁰ is an apocalyptic number.

891130 is a deficient number, since it is larger than the sum of its proper divisors (712922).

891130 is a wasteful number, since it uses less digits than its factorization.

891130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89120.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 891130 is about 943.9968220285. The cubic root of 891130 is about 96.2307095765.

The spelling of 891130 in words is "eight hundred ninety-one thousand, one hundred thirty".