897699 has 12 divisors (see below), whose sum is σ = 1316168. Its totient is φ = 543840.

The previous prime is 897691. The next prime is 897703. The reversal of 897699 is 996798.

It is a happy number.

It is not a de Polignac number, because 897699 - 2³ = 897691 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 897699.

It is not an unprimeable number, because it can be changed into a prime (897691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874 + ... + 1599.

2⁸⁹⁷⁶⁹⁹ is an apocalyptic number.

897699 is a deficient number, since it is larger than the sum of its proper divisors (418469).

897699 is a wasteful number, since it uses less digits than its factorization.

897699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2487 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 897699 is about 947.4697884365. The cubic root of 897699 is about 96.4665870881.

Subtracting 897699 from its reverse (996798), we obtain a palindrome (99099).

It can be divided in two parts, 897 and 699, that added together give a triangular number (1596 = T₅₆).

The spelling of 897699 in words is "eight hundred ninety-seven thousand, six hundred ninety-nine".