7942231 has 8 divisors (see below), whose sum is σ = 8944128. Its totient is φ = 6987000.

The previous prime is 7942223. The next prime is 7942243. The reversal of 7942231 is 1322497.

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

It is a cyclic number.

It is not a de Polignac number, because 7942231 - 2³ = 7942223 is a prime.

It is a super-2 number, since 2×7942231² = 126158066514722, which contains 22 as substring.

It is a Duffinian number.

7942231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7942231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7942211) 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, 11305 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (1118016).

Almost surely, 2^7942231 is an apocalyptic number.

7942231 is a deficient number, since it is larger than the sum of its proper divisors (1001897).

7942231 is a wasteful number, since it uses less digits than its factorization.

7942231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23333.

The product of its digits is 3024, while the sum is 28.

The square root of 7942231 is about 2818.1964090531. The cubic root of 7942231 is about 199.5174282256.

It can be divided in two parts, 794 and 2231, that added together give a square (3025 = 55²).

The spelling of 7942231 in words is "seven million, nine hundred forty-two thousand, two hundred thirty-one".