897740 has 12 divisors (see below), whose sum is σ = 1885296. Its totient is φ = 359088.

The previous prime is 897727. The next prime is 897751. The reversal of 897740 is 47798.

It is a self number, because there is not a number n which added to its sum of digits gives 897740.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 897740.

It is an unprimeable 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, 22424 + ... + 22463.

It is an arithmetic number, because the mean of its divisors is an integer number (157108).

2⁸⁹⁷⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

897740 is an abundant number, since it is smaller than the sum of its proper divisors (987556).

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

897740 is a wasteful number, since it uses less digits than its factorization.

897740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44896 (or 44894 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 897740 is about 947.4914247633. The cubic root of 897740 is about 96.4680556835.

The spelling of 897740 in words is "eight hundred ninety-seven thousand, seven hundred forty".