4312985 has 8 divisors (see below), whose sum is σ = 5480136. Its totient is φ = 3247360.

The previous prime is 4312969. The next prime is 4313027. The reversal of 4312985 is 5892134.

4312985 = 1468² + 1469².

It can be written as a sum of positive squares in 4 ways, for example, as 364816 + 3948169 = 604^2 + 1987^2 .

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

It is not a de Polignac number, because 4312985 - 2⁴ = 4312969 is a prime.

It is a super-2 number, since 2×4312985² = 37203679220450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25286 + ... + 25455.

It is an arithmetic number, because the mean of its divisors is an integer number (685017).

Almost surely, 2^4312985 is an apocalyptic number.

4312985 is the 1469-th centered square number.

It is an amenable number.

4312985 is a deficient number, since it is larger than the sum of its proper divisors (1167151).

4312985 is a wasteful number, since it uses less digits than its factorization.

4312985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50763.

The product of its digits is 8640, while the sum is 32.

The square root of 4312985 is about 2076.7727367240. The cubic root of 4312985 is about 162.7768534968.

The spelling of 4312985 in words is "four million, three hundred twelve thousand, nine hundred eighty-five".