867245 has 8 divisors (see below), whose sum is σ = 1076760. Its totient is φ = 669760.

The previous prime is 867233. The next prime is 867253. The reversal of 867245 is 542768.

867245 = 658² + 659².

It can be written as a sum of positive squares in 4 ways, for example, as 484 + 866761 = 22^2 + 931^2 .

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

It is not a de Polignac number, because 867245 - 2¹⁰ = 866221 is a prime.

It is a super-2 number, since 2×867245² = 1504227780050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (134595).

2⁸⁶⁷²⁴⁵ is an apocalyptic number.

867245 is the 659-th centered square number.

It is an amenable number.

867245 is a deficient number, since it is larger than the sum of its proper divisors (209515).

867245 is a wasteful number, since it uses less digits than its factorization.

867245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015.

The product of its digits is 13440, while the sum is 32.

The square root of 867245 is about 931.2598992762. The cubic root of 867245 is about 95.3631529561.

The spelling of 867245 in words is "eight hundred sixty-seven thousand, two hundred forty-five".