70287 has 8 divisors (see below), whose sum is σ = 107136. Its totient is φ = 40152.

The previous prime is 70271. The next prime is 70289. The reversal of 70287 is 78207.

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

It is not a de Polignac number, because 70287 - 2⁴ = 70271 is a prime.

70287 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70287.

It is not an unprimeable number, because it can be changed into a prime (70289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653 + ... + 1694.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2⁷⁰²⁸⁷ is an apocalyptic number.

70287 is a deficient number, since it is larger than the sum of its proper divisors (36849).

70287 is a wasteful number, since it uses less digits than its factorization.

70287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70287 is about 265.1169553235. The cubic root of 70287 is about 41.2691004289.

The spelling of 70287 in words is "seventy thousand, two hundred eighty-seven".