696409 has 4 divisors (see below), whose sum is σ = 795904. Its totient is φ = 596916.

The previous prime is 696403. The next prime is 696413. The reversal of 696409 is 904696.

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 a cyclic number.

It is not a de Polignac number, because 696409 - 2⁷ = 696281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696403) 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, 49737 + ... + 49750.

It is an arithmetic number, because the mean of its divisors is an integer number (198976).

2⁶⁹⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

696409 is a deficient number, since it is larger than the sum of its proper divisors (99495).

696409 is an equidigital number, since it uses as much as digits as its factorization.

696409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99494.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 696409 is about 834.5112341964. The cubic root of 696409 is about 88.6383082155.

The spelling of 696409 in words is "six hundred ninety-six thousand, four hundred nine".