845347 has 2 divisors, whose sum is σ = 845348. Its totient is φ = 845346.

The previous prime is 845333. The next prime is 845357. The reversal of 845347 is 743548.

845347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845347 - 2⁷ = 845219 is a prime.

It is a super-2 number, since 2×845347² = 1429223100818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (845357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422673 + 422674.

It is an arithmetic number, because the mean of its divisors is an integer number (422674).

2⁸⁴⁵³⁴⁷ is an apocalyptic number.

845347 is a deficient number, since it is larger than the sum of its proper divisors (1).

845347 is an equidigital number, since it uses as much as digits as its factorization.

845347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 845347 is about 919.4275392874. The cubic root of 845347 is about 94.5536587656.

The spelling of 845347 in words is "eight hundred forty-five thousand, three hundred forty-seven".