82175830 has 16 divisors (see below), whose sum is σ = 161363664. Its totient is φ = 29882080.

The previous prime is 82175813. The next prime is 82175831. The reversal of 82175830 is 3857128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82175831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373417 + ... + 373636.

It is an arithmetic number, because the mean of its divisors is an integer number (10085229).

Almost surely, 2^82175830 is an apocalyptic number.

82175830 is a deficient number, since it is larger than the sum of its proper divisors (79187834).

82175830 is a wasteful number, since it uses less digits than its factorization.

82175830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747071.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 82175830 is about 9065.0885268705. The cubic root of 82175830 is about 434.7584513549.

The spelling of 82175830 in words is "eighty-two million, one hundred seventy-five thousand, eight hundred thirty".