3698389691 has 8 divisors (see below), whose sum is σ = 4027285200. Its totient is φ = 3382918560.

The previous prime is 3698389687. The next prime is 3698389699. The reversal of 3698389691 is 1969838963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3698389691 - 2² = 3698389687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3698389699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355520 + ... + 3356621.

It is an arithmetic number, because the mean of its divisors is an integer number (503410650).

Almost surely, 2^3698389691 is an apocalyptic number.

3698389691 is a deficient number, since it is larger than the sum of its proper divisors (328895509).

3698389691 is a wasteful number, since it uses less digits than its factorization.

3698389691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6712189.

The product of its digits is 15116544, while the sum is 62.

The square root of 3698389691 is about 60814.3872040161. The cubic root of 3698389691 is about 1546.4559598318.

The spelling of 3698389691 in words is "three billion, six hundred ninety-eight million, three hundred eighty-nine thousand, six hundred ninety-one".