4288931 has 4 divisors (see below), whose sum is σ = 4296264. Its totient is φ = 4281600.

The previous prime is 4288909. The next prime is 4288937. The reversal of 4288931 is 1398824.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4288931 is a prime.

It is a super-2 number, since 2×4288931² = 36789858245522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4288891 and 4288900.

It is not an unprimeable number, because it can be changed into a prime (4288937) 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, 2705 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (1074066).

Almost surely, 2^4288931 is an apocalyptic number.

4288931 is a deficient number, since it is larger than the sum of its proper divisors (7333).

4288931 is an equidigital number, since it uses as much as digits as its factorization.

4288931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332.

The product of its digits is 13824, while the sum is 35.

The square root of 4288931 is about 2070.9734426110. The cubic root of 4288931 is about 162.4736809446.

The spelling of 4288931 in words is "four million, two hundred eighty-eight thousand, nine hundred thirty-one".