897321433 has 4 divisors (see below), whose sum is σ = 897383908. Its totient is φ = 897258960.

The previous prime is 897321431. The next prime is 897321457. The reversal of 897321433 is 334123798.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 260112384 + 637209049 = 16128^2 + 25243^2 .

It is a cyclic number.

It is not a de Polignac number, because 897321433 - 2¹ = 897321431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897321431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335 + ... + 42427.

It is an arithmetic number, because the mean of its divisors is an integer number (224345977).

Almost surely, 2^897321433 is an apocalyptic number.

It is an amenable number.

897321433 is a deficient number, since it is larger than the sum of its proper divisors (62475).

897321433 is a wasteful number, since it uses less digits than its factorization.

897321433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62474.

The product of its digits is 108864, while the sum is 40.

The square root of 897321433 is about 29955.3239508439. The cubic root of 897321433 is about 964.5306076227.

The spelling of 897321433 in words is "eight hundred ninety-seven million, three hundred twenty-one thousand, four hundred thirty-three".