696469691 has 2 divisors, whose sum is σ = 696469692. Its totient is φ = 696469690.

The previous prime is 696469679. The next prime is 696469721. The reversal of 696469691 is 196964696.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696469691 is a prime.

It is not a weakly prime, because it can be changed into another prime (696469621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348234845 + 348234846.

It is an arithmetic number, because the mean of its divisors is an integer number (348234846).

Almost surely, 2^696469691 is an apocalyptic number.

696469691 is a deficient number, since it is larger than the sum of its proper divisors (1).

696469691 is an equidigital number, since it uses as much as digits as its factorization.

696469691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 56.

The square root of 696469691 is about 26390.7122109275. The cubic root of 696469691 is about 886.4088303921.

It can be divided in two parts, 6964696 and 91, that multiplied together give a palindrome (633787336).

The spelling of 696469691 in words is "six hundred ninety-six million, four hundred sixty-nine thousand, six hundred ninety-one".