697089 has 4 divisors (see below), whose sum is σ = 929456. Its totient is φ = 464724.

The previous prime is 697087. The next prime is 697093. The reversal of 697089 is 980796.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 697089 - 2¹ = 697087 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116179 + ... + 116184.

It is an arithmetic number, because the mean of its divisors is an integer number (232364).

2⁶⁹⁷⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

697089 is a deficient number, since it is larger than the sum of its proper divisors (232367).

697089 is a wasteful number, since it uses less digits than its factorization.

697089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232366.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 697089 is about 834.9185589026. The cubic root of 697089 is about 88.6671487590.

The spelling of 697089 in words is "six hundred ninety-seven thousand, eighty-nine".