7285231 has 8 divisors (see below), whose sum is σ = 7791984. Its totient is φ = 6787200.

The previous prime is 7285219. The next prime is 7285237. The reversal of 7285231 is 1325827.

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

It is not a de Polignac number, because 7285231 - 2⁵ = 7285199 is a prime.

It is a super-2 number, since 2×7285231² = 106149181446722, which contains 22 as substring.

7285231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7285231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285237) 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, 405 + ... + 3838.

It is an arithmetic number, because the mean of its divisors is an integer number (973998).

Almost surely, 2^7285231 is an apocalyptic number.

7285231 is a deficient number, since it is larger than the sum of its proper divisors (506753).

7285231 is a wasteful number, since it uses less digits than its factorization.

7285231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361.

The product of its digits is 3360, while the sum is 28.

The square root of 7285231 is about 2699.1167073693. The cubic root of 7285231 is about 193.8568309904.

The spelling of 7285231 in words is "seven million, two hundred eighty-five thousand, two hundred thirty-one".