897212447684 has 36 divisors (see below), whose sum is σ = 1826558774460. Its totient is φ = 384500551680.

The previous prime is 897212447633. The next prime is 897212447717. The reversal of 897212447684 is 486744212798.

897212447684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 149900608900 + 747311838784 = 387170^2 + 864472^2 .

It is a super-2 number, since 2×897212447684² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4282004 + ... + 4486644.

It is an arithmetic number, because the mean of its divisors is an integer number (50737743735).

Almost surely, 2^897212447684 is an apocalyptic number.

It is an amenable number.

897212447684 is an abundant number, since it is smaller than the sum of its proper divisors (929346326776).

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

897212447684 is a wasteful number, since it uses less digits than its factorization.

897212447684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227028 (or 227019 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 62.

The spelling of 897212447684 in words is "eight hundred ninety-seven billion, two hundred twelve million, four hundred forty-seven thousand, six hundred eighty-four".