868451 has 2 divisors, whose sum is σ = 868452. Its totient is φ = 868450.

The previous prime is 868423. The next prime is 868453. The reversal of 868451 is 154868.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868451 is a prime.

Together with 868453, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868451.

It is not a weakly prime, because it can be changed into another prime (868453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434225 + 434226.

It is an arithmetic number, because the mean of its divisors is an integer number (434226).

2⁸⁶⁸⁴⁵¹ is an apocalyptic number.

868451 is a deficient number, since it is larger than the sum of its proper divisors (1).

868451 is an equidigital number, since it uses as much as digits as its factorization.

868451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 868451 is about 931.9071842195. The cubic root of 868451 is about 95.4073368154.

The spelling of 868451 in words is "eight hundred sixty-eight thousand, four hundred fifty-one".