4309285 has 4 divisors (see below), whose sum is σ = 5171148. Its totient is φ = 3447424.

The previous prime is 4309273. The next prime is 4309297. The reversal of 4309285 is 5829034.

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 (4309273) and next prime (4309297).

It can be written as a sum of positive squares in 2 ways, for example, as 2825761 + 1483524 = 1681^2 + 1218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4309285 is a prime.

It is a super-2 number, since 2×4309285² = 37139874422450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430924 + ... + 430933.

It is an arithmetic number, because the mean of its divisors is an integer number (1292787).

Almost surely, 2^4309285 is an apocalyptic number.

It is an amenable number.

4309285 is a deficient number, since it is larger than the sum of its proper divisors (861863).

4309285 is an equidigital number, since it uses as much as digits as its factorization.

4309285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861862.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4309285 is about 2075.8817403696. The cubic root of 4309285 is about 162.7302928074.

The spelling of 4309285 in words is "four million, three hundred nine thousand, two hundred eighty-five".