853403 has 2 divisors, whose sum is σ = 853404. Its totient is φ = 853402.

The previous prime is 853387. The next prime is 853427. The reversal of 853403 is 304358.

853403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 853403 - 2⁴ = 853387 is a prime.

It is not a weakly prime, because it can be changed into another prime (853493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426701 + 426702.

It is an arithmetic number, because the mean of its divisors is an integer number (426702).

2⁸⁵³⁴⁰³ is an apocalyptic number.

853403 is a deficient number, since it is larger than the sum of its proper divisors (1).

853403 is an equidigital number, since it uses as much as digits as its factorization.

853403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 853403 is about 923.7981381233. The cubic root of 853403 is about 94.8530692672.

The spelling of 853403 in words is "eight hundred fifty-three thousand, four hundred three".