897101240 has 32 divisors (see below), whose sum is σ = 2306832480. Its totient is φ = 307577472.

The previous prime is 897101213. The next prime is 897101251. The reversal of 897101240 is 42101798.

It is a junction number, because it is equal to n+sod(n) for n = 897101197 and 897101206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601687 + ... + 1602246.

It is an arithmetic number, because the mean of its divisors is an integer number (72088515).

Almost surely, 2^897101240 is an apocalyptic number.

It is an amenable number.

897101240 is an abundant number, since it is smaller than the sum of its proper divisors (1409731240).

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

897101240 is a wasteful number, since it uses less digits than its factorization.

897101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203951 (or 3203947 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 897101240 is about 29951.6483686624. The cubic root of 897101240 is about 964.4517060330.

The spelling of 897101240 in words is "eight hundred ninety-seven million, one hundred one thousand, two hundred forty".