897277797 has 32 divisors (see below), whose sum is σ = 1447689600. Its totient is φ = 545947776.

The previous prime is 897277789. The next prime is 897277811. The reversal of 897277797 is 797772798.

It is not a de Polignac number, because 897277797 - 2³ = 897277789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897277727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16878 + ... + 45600.

It is an arithmetic number, because the mean of its divisors is an integer number (45240300).

Almost surely, 2^897277797 is an apocalyptic number.

It is an amenable number.

897277797 is a deficient number, since it is larger than the sum of its proper divisors (550411803).

897277797 is a wasteful number, since it uses less digits than its factorization.

897277797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28834 (or 28828 counting only the distinct ones).

The product of its digits is 21781872, while the sum is 63.

The square root of 897277797 is about 29954.5955906602. The cubic root of 897277797 is about 964.5149725937.

The spelling of 897277797 in words is "eight hundred ninety-seven million, two hundred seventy-seven thousand, seven hundred ninety-seven".