7163731 has 2 divisors, whose sum is σ = 7163732. Its totient is φ = 7163730.

The previous prime is 7163729. The next prime is 7163747. The reversal of 7163731 is 1373617.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7163731 - 2¹ = 7163729 is a prime.

It is a super-2 number, since 2×7163731² = 102638083680722, which contains 22 as substring.

Together with 7163729, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7163731.

It is not a weakly prime, because it can be changed into another prime (7163711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3581865 + 3581866.

It is an arithmetic number, because the mean of its divisors is an integer number (3581866).

Almost surely, 2^7163731 is an apocalyptic number.

7163731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7163731 is an equidigital number, since it uses as much as digits as its factorization.

7163731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 28.

The square root of 7163731 is about 2676.5147113364. The cubic root of 7163731 is about 192.7730963849.

The spelling of 7163731 in words is "seven million, one hundred sixty-three thousand, seven hundred thirty-one".