897484769 has 2 divisors, whose sum is σ = 897484770. Its totient is φ = 897484768.

The previous prime is 897484747. The next prime is 897484807. The reversal of 897484769 is 967484798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 750760000 + 146724769 = 27400^2 + 12113^2 .

It is a cyclic number.

It is not a de Polignac number, because 897484769 - 2¹² = 897480673 is a prime.

It is a super-2 number, since 2×897484769² = 1610957821173966722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (897484739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448742384 + 448742385.

It is an arithmetic number, because the mean of its divisors is an integer number (448742385).

Almost surely, 2^897484769 is an apocalyptic number.

It is an amenable number.

897484769 is a deficient number, since it is larger than the sum of its proper divisors (1).

897484769 is an equidigital number, since it uses as much as digits as its factorization.

897484769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 62.

The square root of 897484769 is about 29958.0501535063. The cubic root of 897484769 is about 964.5891273488.

The spelling of 897484769 in words is "eight hundred ninety-seven million, four hundred eighty-four thousand, seven hundred sixty-nine".