968731 has 2 divisors, whose sum is σ = 968732. Its totient is φ = 968730.

The previous prime is 968729. The next prime is 968761. The reversal of 968731 is 137869.

968731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (137869) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 968731 - 2¹ = 968729 is a prime.

It is a super-2 number, since 2×968731² = 1876879500722, which contains 22 as substring.

Together with 968729, it forms a pair of twin primes.

968731 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (968761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484365 + 484366.

It is an arithmetic number, because the mean of its divisors is an integer number (484366).

2⁹⁶⁸⁷³¹ is an apocalyptic number.

968731 is a deficient number, since it is larger than the sum of its proper divisors (1).

968731 is an equidigital number, since it uses as much as digits as its factorization.

968731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 968731 is about 984.2413321945. The cubic root of 968731 is about 98.9466433566.

The spelling of 968731 in words is "nine hundred sixty-eight thousand, seven hundred thirty-one".