887309 has 4 divisors (see below), whose sum is σ = 889980. Its totient is φ = 884640.

The previous prime is 887291. The next prime is 887311. The reversal of 887309 is 903788.

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 366025 + 521284 = 605^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 887309 - 2¹² = 883213 is a prime.

It is a super-3 number, since 3×887309³ = 2095781075902333887, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887399) 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, 752 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (222495).

2⁸⁸⁷³⁰⁹ is an apocalyptic number.

It is an amenable number.

887309 is a deficient number, since it is larger than the sum of its proper divisors (2671).

887309 is a wasteful number, since it uses less digits than its factorization.

887309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 887309 is about 941.9708063417. The cubic root of 887309 is about 96.0929727194.

The spelling of 887309 in words is "eight hundred eighty-seven thousand, three hundred nine".