971830 has 16 divisors (see below), whose sum is σ = 1763280. Its totient is φ = 385632.

The previous prime is 971821. The next prime is 971833. The reversal of 971830 is 38179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971833) by changing a digit.

971830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 1879.

It is an arithmetic number, because the mean of its divisors is an integer number (110205).

2⁹⁷¹⁸³⁰ is an apocalyptic number.

971830 is a deficient number, since it is larger than the sum of its proper divisors (791450).

971830 is a wasteful number, since it uses less digits than its factorization.

971830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 971830 is about 985.8143841515. The cubic root of 971830 is about 99.0520421545.

The spelling of 971830 in words is "nine hundred seventy-one thousand, eight hundred thirty".