7873631 has 2 divisors, whose sum is σ = 7873632. Its totient is φ = 7873630.

The previous prime is 7873603. The next prime is 7873633. The reversal of 7873631 is 1363787.

It is a strong prime.

It is an emirp because it is prime and its reverse (1363787) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7873631 is a prime.

It is a super-2 number, since 2×7873631² = 123988130248322, which contains 22 as substring.

Together with 7873633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7873591 and 7873600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7873633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936815 + 3936816.

It is an arithmetic number, because the mean of its divisors is an integer number (3936816).

Almost surely, 2^7873631 is an apocalyptic number.

7873631 is a deficient number, since it is larger than the sum of its proper divisors (1).

7873631 is an equidigital number, since it uses as much as digits as its factorization.

7873631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 7873631 is about 2805.9991090519. Note that the first 3 decimals coincide. The cubic root of 7873631 is about 198.9413309874.

The spelling of 7873631 in words is "seven million, eight hundred seventy-three thousand, six hundred thirty-one".