696891 has 16 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 422304.

The previous prime is 696889. The next prime is 696893. The reversal of 696891 is 198696.

696891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (696889) and next prime (696893).

It is not a de Polignac number, because 696891 - 2¹ = 696889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

696891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (696893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4090 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (63504).

2⁶⁹⁶⁸⁹¹ is an apocalyptic number.

696891 is a deficient number, since it is larger than the sum of its proper divisors (319173).

696891 is a wasteful number, since it uses less digits than its factorization.

696891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 23328, while the sum is 39.

The square root of 696891 is about 834.7999760422. The cubic root of 696891 is about 88.6587530076.

The spelling of 696891 in words is "six hundred ninety-six thousand, eight hundred ninety-one".