285116347 has 4 divisors (see below), whose sum is σ = 285751800. Its totient is φ = 284480896.

The previous prime is 285116341. The next prime is 285116353. The reversal of 285116347 is 743611582.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (285116341) and next prime (285116353).

It is a cyclic number.

It is not a de Polignac number, because 285116347 - 2²³ = 276727739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285116341) 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, 317053 + ... + 317950.

It is an arithmetic number, because the mean of its divisors is an integer number (71437950).

Almost surely, 2^285116347 is an apocalyptic number.

285116347 is a deficient number, since it is larger than the sum of its proper divisors (635453).

285116347 is an equidigital number, since it uses as much as digits as its factorization.

285116347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635452.

The product of its digits is 40320, while the sum is 37.

The square root of 285116347 is about 16885.3885652655. The cubic root of 285116347 is about 658.1739753935.

The spelling of 285116347 in words is "two hundred eighty-five million, one hundred sixteen thousand, three hundred forty-seven".