897430752 has 120 divisors (see below), whose sum is σ = 2730558600. Its totient is φ = 288804096.

The previous prime is 897430741. The next prime is 897430789. The reversal of 897430752 is 257034798.

It is a junction number, because it is equal to n+sod(n) for n = 897430698 and 897430707.

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 19 ways as a sum of consecutive naturals, for example, 69199 + ... + 81137.

It is an arithmetic number, because the mean of its divisors is an integer number (22754655).

Almost surely, 2^897430752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897430752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365279300).

897430752 is an abundant number, since it is smaller than the sum of its proper divisors (1833127848).

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

897430752 is a wasteful number, since it uses less digits than its factorization.

897430752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11990 (or 11973 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 897430752 is about 29957.1485959529. The cubic root of 897430752 is about 964.5697750217.

It can be divided in two parts, 897 and 430752, that added together give a square (431649 = 657²).

The spelling of 897430752 in words is "eight hundred ninety-seven million, four hundred thirty thousand, seven hundred fifty-two".