897142 has 8 divisors (see below), whose sum is σ = 1416600. Its totient is φ = 424944.

The previous prime is 897137. The next prime is 897157. The reversal of 897142 is 241798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

897142 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 3 ways as a sum of consecutive naturals, for example, 11767 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (177075).

2⁸⁹⁷¹⁴² is an apocalyptic number.

897142 is a deficient number, since it is larger than the sum of its proper divisors (519458).

897142 is a wasteful number, since it uses less digits than its factorization.

897142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23630.

The product of its digits is 4032, while the sum is 31.

The square root of 897142 is about 947.1758020558. The cubic root of 897142 is about 96.4466312506.

The spelling of 897142 in words is "eight hundred ninety-seven thousand, one hundred forty-two".