891325 has 12 divisors (see below), whose sum is σ = 1119348. Its totient is φ = 704000.

The previous prime is 891323. The next prime is 891329. The reversal of 891325 is 523198.

It can be written as a sum of positive squares in 6 ways, for example, as 9604 + 881721 = 98^2 + 939^2 .

It is not a de Polignac number, because 891325 - 2¹ = 891323 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 891293 and 891302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2349 + ... + 2701.

It is an arithmetic number, because the mean of its divisors is an integer number (93279).

2⁸⁹¹³²⁵ is an apocalyptic number.

891325 is the 505-th nonagonal number.

It is an amenable number.

891325 is a deficient number, since it is larger than the sum of its proper divisors (228023).

891325 is a wasteful number, since it uses less digits than its factorization.

891325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 459 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 891325 is about 944.1001006249. The cubic root of 891325 is about 96.2377282381.

The spelling of 891325 in words is "eight hundred ninety-one thousand, three hundred twenty-five".