897767798 has 4 divisors (see below), whose sum is σ = 1346651700. Its totient is φ = 448883898.

The previous prime is 897767791. The next prime is 897767813.

897767798 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897767791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224441948 + ... + 224441951.

It is an arithmetic number, because the mean of its divisors is an integer number (336662925).

Almost surely, 2^897767798 is an apocalyptic number.

897767798 is a deficient number, since it is larger than the sum of its proper divisors (448883902).

897767798 is a wasteful number, since it uses less digits than its factorization.

897767798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448883901.

The product of its digits is 74680704, while the sum is 68.

The square root of 897767798 is about 29962.7735365069. The cubic root of 897767798 is about 964.6905136572.

The spelling of 897767798 in words is "eight hundred ninety-seven million, seven hundred sixty-seven thousand, seven hundred ninety-eight".