853667 has 2 divisors, whose sum is σ = 853668. Its totient is φ = 853666.

The previous prime is 853663. The next prime is 853669. The reversal of 853667 is 766358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853667 - 2² = 853663 is a prime.

Together with 853669, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₆₇₈₇₇ and since 853667 and 67877 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (853663) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426833 + 426834.

It is an arithmetic number, because the mean of its divisors is an integer number (426834).

2⁸⁵³⁶⁶⁷ is an apocalyptic number.

853667 is a deficient number, since it is larger than the sum of its proper divisors (1).

853667 is an equidigital number, since it uses as much as digits as its factorization.

853667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 853667 is about 923.9410154333. The cubic root of 853667 is about 94.8628491830.

The spelling of 853667 in words is "eight hundred fifty-three thousand, six hundred sixty-seven".