87345 has 16 divisors (see below), whose sum is σ = 155520. Its totient is φ = 46512.

The previous prime is 87337. The next prime is 87359. The reversal of 87345 is 54378.

It is not a de Polignac number, because 87345 - 2³ = 87337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189 + ... + 458.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2⁸⁷³⁴⁵ is an apocalyptic number.

It is an amenable number.

87345 is a deficient number, since it is larger than the sum of its proper divisors (68175).

87345 is a wasteful number, since it uses less digits than its factorization.

87345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 87345 is about 295.5418752055. The cubic root of 87345 is about 44.3689702843.

The spelling of 87345 in words is "eighty-seven thousand, three hundred forty-five".