858372 has 24 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 283968.

The previous prime is 858317. The next prime is 858373. The reversal of 858372 is 273858.

It is not an unprimeable number, because it can be changed into a prime (858373) by changing a digit.

858372 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

2⁸⁵⁸³⁷² is an apocalyptic number.

It is an amenable number.

858372 is an abundant number, since it is smaller than the sum of its proper divisors (1159644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

858372 is a wasteful number, since it uses less digits than its factorization.

858372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 858372 is about 926.4836749776. The cubic root of 858372 is about 95.0368093738.

The spelling of 858372 in words is "eight hundred fifty-eight thousand, three hundred seventy-two".