830887 has 2 divisors, whose sum is σ = 830888. Its totient is φ = 830886.

The previous prime is 830873. The next prime is 830891. The reversal of 830887 is 788038.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-830887 is a prime.

830887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415443 + 415444.

It is an arithmetic number, because the mean of its divisors is an integer number (415444).

2⁸³⁰⁸⁸⁷ is an apocalyptic number.

830887 is a deficient number, since it is larger than the sum of its proper divisors (1).

830887 is an equidigital number, since it uses as much as digits as its factorization.

830887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 830887 is about 911.5300324180. The cubic root of 830887 is about 94.0114291219.

Subtracting from 830887 its reverse (788038), we obtain a square (42849 = 207²).

The spelling of 830887 in words is "eight hundred thirty thousand, eight hundred eighty-seven".