897903936 has 168 divisors, whose sum is σ = 2663564904. Its totient is φ = 289013760.

The previous prime is 897903913. The next prime is 897903947. The reversal of 897903936 is 639309798.

It can be written as a sum of positive squares in 4 ways, for example, as 76737600 + 821166336 = 8760^2 + 28656^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4557790 + ... + 4557986.

It is an arithmetic number, because the mean of its divisors is an integer number (15854553).

Almost surely, 2^897903936 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 897903936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331782452).

897903936 is an abundant number, since it is smaller than the sum of its proper divisors (1765660968).

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

897903936 is a wasteful number, since it uses less digits than its factorization.

897903936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 897903936 is about 29965.0452360746. The cubic root of 897903936 is about 964.7392732584.

The spelling of 897903936 in words is "eight hundred ninety-seven million, nine hundred three thousand, nine hundred thirty-six".