695738091 has 4 divisors (see below), whose sum is σ = 927650792. Its totient is φ = 463825392.

The previous prime is 695738081. The next prime is 695738093. The reversal of 695738091 is 190837596.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 695738091 - 2⁵ = 695738059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 695738091.

It is not an unprimeable number, because it can be changed into a prime (695738093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115956346 + ... + 115956351.

It is an arithmetic number, because the mean of its divisors is an integer number (231912698).

Almost surely, 2^695738091 is an apocalyptic number.

695738091 is a deficient number, since it is larger than the sum of its proper divisors (231912701).

695738091 is a wasteful number, since it uses less digits than its factorization.

695738091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231912700.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 695738091 is about 26376.8476319669. The cubic root of 695738091 is about 886.0983483949.

The spelling of 695738091 in words is "six hundred ninety-five million, seven hundred thirty-eight thousand, ninety-one".