3689724291 has 8 divisors (see below), whose sum is σ = 5366871744. Its totient is φ = 2236196520.

The previous prime is 3689724271. The next prime is 3689724293. The reversal of 3689724291 is 1924279863.

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

It is not a de Polignac number, because 3689724291 - 2¹⁰ = 3689723267 is a prime.

It is a super-2 number, since 2×3689724291² = 27228130687190905362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3689724293) 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, 55904881 + ... + 55904946.

It is an arithmetic number, because the mean of its divisors is an integer number (670858968).

Almost surely, 2^3689724291 is an apocalyptic number.

3689724291 is a deficient number, since it is larger than the sum of its proper divisors (1677147453).

3689724291 is a wasteful number, since it uses less digits than its factorization.

3689724291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111809841.

The product of its digits is 1306368, while the sum is 51.

The square root of 3689724291 is about 60743.1007687293. The cubic root of 3689724291 is about 1545.2472230353.

The spelling of 3689724291 in words is "three billion, six hundred eighty-nine million, seven hundred twenty-four thousand, two hundred ninety-one".