867623 has 2 divisors, whose sum is σ = 867624. Its totient is φ = 867622.

The previous prime is 867619. The next prime is 867631. The reversal of 867623 is 326768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867623 - 2² = 867619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 867623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433811 + 433812.

It is an arithmetic number, because the mean of its divisors is an integer number (433812).

2⁸⁶⁷⁶²³ is an apocalyptic number.

867623 is a deficient number, since it is larger than the sum of its proper divisors (1).

867623 is an equidigital number, since it uses as much as digits as its factorization.

867623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 867623 is about 931.4628280291. The cubic root of 867623 is about 95.3770060334.

The spelling of 867623 in words is "eight hundred sixty-seven thousand, six hundred twenty-three".