897153240 has 64 divisors (see below), whose sum is σ = 2849787360. Its totient is φ = 225167360.

The previous prime is 897153239. The next prime is 897153241. The reversal of 897153240 is 42351798.

It is an interprime number because it is at equal distance from previous prime (897153239) and next prime (897153241).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897153241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 217851 + ... + 221930.

Almost surely, 2^897153240 is an apocalyptic number.

It is an amenable number.

897153240 is an abundant number, since it is smaller than the sum of its proper divisors (1952634120).

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

897153240 is a wasteful number, since it uses less digits than its factorization.

897153240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439812 (or 439808 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 897153240 is about 29952.5164218301. The cubic root of 897153240 is about 964.4703403177.

The spelling of 897153240 in words is "eight hundred ninety-seven million, one hundred fifty-three thousand, two hundred forty".