867966731 has 2 divisors, whose sum is σ = 867966732. Its totient is φ = 867966730.

The previous prime is 867966713. The next prime is 867966763. The reversal of 867966731 is 137669768.

Together with previous prime (867966713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867966731 is a prime.

It is a super-2 number, since 2×867966731² = 1506732492245652722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (867966791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433983365 + 433983366.

It is an arithmetic number, because the mean of its divisors is an integer number (433983366).

Almost surely, 2^867966731 is an apocalyptic number.

867966731 is a deficient number, since it is larger than the sum of its proper divisors (1).

867966731 is an equidigital number, since it uses as much as digits as its factorization.

867966731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 867966731 is about 29461.2751081823. The cubic root of 867966731 is about 953.8959971564.

The spelling of 867966731 in words is "eight hundred sixty-seven million, nine hundred sixty-six thousand, seven hundred thirty-one".