897481984 has 72 divisors (see below), whose sum is σ = 2059436288. Its totient is φ = 382371840.

The previous prime is 897481979. The next prime is 897481987. The reversal of 897481984 is 489184798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897481987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322969 + ... + 325735.

Almost surely, 2^897481984 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 897481984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029718144).

897481984 is an abundant number, since it is smaller than the sum of its proper divisors (1161954304).

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

897481984 is a wasteful number, since it uses less digits than its factorization.

897481984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971 (or 2957 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 58.

The square root of 897481984 is about 29958.0036718070. The cubic root of 897481984 is about 964.5881296035.

The spelling of 897481984 in words is "eight hundred ninety-seven million, four hundred eighty-one thousand, nine hundred eighty-four".