897573761 has 4 divisors (see below), whose sum is σ = 1025798592. Its totient is φ = 769348932.

The previous prime is 897573757. The next prime is 897573773. The reversal of 897573761 is 167375798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167375798 = 2 ⋅83687899.

It is a cyclic number.

It is not a de Polignac number, because 897573761 - 2² = 897573757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897573161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64112405 + ... + 64112418.

It is an arithmetic number, because the mean of its divisors is an integer number (256449648).

Almost surely, 2^897573761 is an apocalyptic number.

It is an amenable number.

897573761 is a deficient number, since it is larger than the sum of its proper divisors (128224831).

897573761 is a wasteful number, since it uses less digits than its factorization.

897573761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128224830.

The product of its digits is 2222640, while the sum is 53.

The square root of 897573761 is about 29959.5353935938. The cubic root of 897573761 is about 964.6210082532.

It can be divided in two parts, 8975737 and 61, that added together give a palindrome (8975798).

The spelling of 897573761 in words is "eight hundred ninety-seven million, five hundred seventy-three thousand, seven hundred sixty-one".