897320825 has 6 divisors (see below), whose sum is σ = 1112677854. Its totient is φ = 717856640.

The previous prime is 897320821. The next prime is 897320839. The reversal of 897320825 is 528023798.

It can be written as a sum of positive squares in 3 ways, for example, as 1336336 + 895984489 = 1156^2 + 29933^2 .

It is not a de Polignac number, because 897320825 - 2² = 897320821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897320821) 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 5 ways as a sum of consecutive naturals, for example, 17946392 + ... + 17946441.

It is an arithmetic number, because the mean of its divisors is an integer number (185446309).

Almost surely, 2^897320825 is an apocalyptic number.

It is an amenable number.

897320825 is a deficient number, since it is larger than the sum of its proper divisors (215357029).

897320825 is a wasteful number, since it uses less digits than its factorization.

897320825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35892843 (or 35892838 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 897320825 is about 29955.3138023957. The cubic root of 897320825 is about 964.5303897763.

The spelling of 897320825 in words is "eight hundred ninety-seven million, three hundred twenty thousand, eight hundred twenty-five".