3699294689 has 4 divisors (see below), whose sum is σ = 3769092756. Its totient is φ = 3629496624.

The previous prime is 3699294679. The next prime is 3699294691. The reversal of 3699294689 is 9864929963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9864929963 = 7 ⋅1409275709.

It can be written as a sum of positive squares in 2 ways, for example, as 1900262464 + 1799032225 = 43592^2 + 42415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3699294689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3699294619) 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, 34898954 + ... + 34899059.

It is an arithmetic number, because the mean of its divisors is an integer number (942273189).

Almost surely, 2^3699294689 is an apocalyptic number.

It is an amenable number.

3699294689 is a deficient number, since it is larger than the sum of its proper divisors (69798067).

3699294689 is an equidigital number, since it uses as much as digits as its factorization.

3699294689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69798066.

The product of its digits is 45349632, while the sum is 65.

The square root of 3699294689 is about 60821.8274059568. The cubic root of 3699294689 is about 1546.5820890869.

The spelling of 3699294689 in words is "three billion, six hundred ninety-nine million, two hundred ninety-four thousand, six hundred eighty-nine".