4231089 has 8 divisors (see below), whose sum is σ = 6268320. Its totient is φ = 2820708.

The previous prime is 4231069. The next prime is 4231099. The reversal of 4231089 is 9801324.

It is not a de Polignac number, because 4231089 - 2¹² = 4226993 is a prime.

It is a super-2 number, since 2×4231089² = 35804228251842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 156707 = 4231089 / (4 + 2 + 3 + 1 + 0 + 8 + 9).

4231089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4231039) 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, 78327 + ... + 78380.

It is an arithmetic number, because the mean of its divisors is an integer number (783540).

Almost surely, 2^4231089 is an apocalyptic number.

It is an amenable number.

4231089 is a deficient number, since it is larger than the sum of its proper divisors (2037231).

4231089 is a wasteful number, since it uses less digits than its factorization.

4231089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156716 (or 156710 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4231089 is about 2056.9611080426. The cubic root of 4231089 is about 161.7399806825.

The spelling of 4231089 in words is "four million, two hundred thirty-one thousand, eighty-nine".