853387 has 2 divisors, whose sum is σ = 853388. Its totient is φ = 853386.

The previous prime is 853357. The next prime is 853403. The reversal of 853387 is 783358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853387 - 2¹⁵ = 820619 is a prime.

It is not a weakly prime, because it can be changed into another prime (853357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426693 + 426694.

It is an arithmetic number, because the mean of its divisors is an integer number (426694).

2⁸⁵³³⁸⁷ is an apocalyptic number.

853387 is a deficient number, since it is larger than the sum of its proper divisors (1).

853387 is an equidigital number, since it uses as much as digits as its factorization.

853387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 853387 is about 923.7894781821. The cubic root of 853387 is about 94.8524764802.

It can be divided in two parts, 8533 and 87, that multiplied together give a triangular number (742371 = T₁₂₁₈).

The spelling of 853387 in words is "eight hundred fifty-three thousand, three hundred eighty-seven".