897475811904 has 189 divisors, whose sum is σ = 2992975357827. Its totient is φ = 256376187648.

The previous prime is 897475811831. The next prime is 897475811951. The reversal of 897475811904 is 409118574798.

The square root of 897475811904 is 947352.

It is a perfect power (a square), and thus also a powerful number.

897475811904 is a `hidden beast` number, since 8 + 9 + 7 + 47 + 581 + 1 + 9 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 159152317 + ... + 159157955.

Almost surely, 2^897475811904 is an apocalyptic number.

897475811904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

897475811904 is the 947352-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897475811904

897475811904 is an abundant number, since it is smaller than the sum of its proper divisors (2095499545923).

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

897475811904 is an frugal number, since it uses more digits than its factorization.

897475811904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310 (or 5651 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 897475811904 in words is "eight hundred ninety-seven billion, four hundred seventy-five million, eight hundred eleven thousand, nine hundred four".