897431 has 4 divisors (see below), whose sum is σ = 900432. Its totient is φ = 894432.

The previous prime is 897401. The next prime is 897433. The reversal of 897431 is 134798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134798 = 2 ⋅67399.

It is a cyclic number.

It is not a de Polignac number, because 897431 - 2¹⁸ = 635287 is a prime.

It is a super-2 number, since 2×897431² = 1610764799522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897433) 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, 995 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (225108).

2⁸⁹⁷⁴³¹ is an apocalyptic number.

897431 is a deficient number, since it is larger than the sum of its proper divisors (3001).

897431 is a wasteful number, since it uses less digits than its factorization.

897431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000.

The product of its digits is 6048, while the sum is 32.

The square root of 897431 is about 947.3283485677. The cubic root of 897431 is about 96.4569863873.

The spelling of 897431 in words is "eight hundred ninety-seven thousand, four hundred thirty-one".