7871231 has 8 divisors (see below), whose sum is σ = 8085504. Its totient is φ = 7659000.

The previous prime is 7871219. The next prime is 7871243. The reversal of 7871231 is 1321787.

It is an interprime number because it is at equal distance from previous prime (7871219) and next prime (7871243).

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 7871231 - 2¹⁰ = 7870207 is a prime.

It is a super-2 number, since 2×7871231² = 123912554910722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7871194 and 7871203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7871251) 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, 10106 + ... + 10856.

It is an arithmetic number, because the mean of its divisors is an integer number (1010688).

Almost surely, 2^7871231 is an apocalyptic number.

7871231 is a deficient number, since it is larger than the sum of its proper divisors (214273).

7871231 is a wasteful number, since it uses less digits than its factorization.

7871231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021.

The product of its digits is 2352, while the sum is 29.

The square root of 7871231 is about 2805.5714212973. The cubic root of 7871231 is about 198.9211155064.

The spelling of 7871231 in words is "seven million, eight hundred seventy-one thousand, two hundred thirty-one".