897813760 has 36 divisors (see below), whose sum is σ = 2150547588. Its totient is φ = 359124992.

The previous prime is 897813743. The next prime is 897813793. The reversal of 897813760 is 67318798.

It can be written as a sum of positive squares in 2 ways, for example, as 270010624 + 627803136 = 16432^2 + 25056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349429 + ... + 351988.

It is an arithmetic number, because the mean of its divisors is an integer number (59737433).

Almost surely, 2^897813760 is an apocalyptic number.

897813760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

897813760 is an abundant number, since it is smaller than the sum of its proper divisors (1252733828).

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

897813760 is an equidigital number, since it uses as much as digits as its factorization.

897813760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701438 (or 701424 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The square root of 897813760 is about 29963.5405117620. The cubic root of 897813760 is about 964.7069760984.

The spelling of 897813760 in words is "eight hundred ninety-seven million, eight hundred thirteen thousand, seven hundred sixty".