897022529 has 4 divisors (see below), whose sum is σ = 966024276. Its totient is φ = 828020784.

The previous prime is 897022513. The next prime is 897022537. The reversal of 897022529 is 925220798.

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

It can be written as a sum of positive squares in 2 ways, for example, as 188238400 + 708784129 = 13720^2 + 26623^2 .

It is a cyclic number.

It is not a de Polignac number, because 897022529 - 2⁴ = 897022513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 897022529.

It is not an unprimeable number, because it can be changed into a prime (897022829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34500854 + ... + 34500879.

It is an arithmetic number, because the mean of its divisors is an integer number (241506069).

Almost surely, 2^897022529 is an apocalyptic number.

It is an amenable number.

897022529 is a deficient number, since it is larger than the sum of its proper divisors (69001747).

897022529 is a wasteful number, since it uses less digits than its factorization.

897022529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69001746.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 897022529 is about 29950.3343720901. The cubic root of 897022529 is about 964.4234984480.

The spelling of 897022529 in words is "eight hundred ninety-seven million, twenty-two thousand, five hundred twenty-nine".