3694903909 has 4 divisors (see below), whose sum is σ = 3728802220. Its totient is φ = 3661005600.

The previous prime is 3694903903. The next prime is 3694904009. The reversal of 3694903909 is 9093094963.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1164310884 + 2530593025 = 34122^2 + 50305^2 .

It is a cyclic number.

It is not a de Polignac number, because 3694903909 - 2²¹ = 3692806757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3694903903) 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, 16948992 + ... + 16949209.

It is an arithmetic number, because the mean of its divisors is an integer number (932200555).

Almost surely, 2^3694903909 is an apocalyptic number.

It is an amenable number.

3694903909 is a deficient number, since it is larger than the sum of its proper divisors (33898311).

3694903909 is a wasteful number, since it uses less digits than its factorization.

3694903909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33898310.

The product of its (nonzero) digits is 1417176, while the sum is 52.

The square root of 3694903909 is about 60785.7212591905. The cubic root of 3694903909 is about 1545.9699552676.

The spelling of 3694903909 in words is "three billion, six hundred ninety-four million, nine hundred three thousand, nine hundred nine".