3671649349 has 4 divisors (see below), whose sum is σ = 3671784160. Its totient is φ = 3671514540.

The previous prime is 3671649347. The next prime is 3671649361. The reversal of 3671649349 is 9439461763.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3671649349 - 2¹ = 3671649347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3671649296 and 3671649305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3671649347) 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, 10587 + ... + 86344.

It is an arithmetic number, because the mean of its divisors is an integer number (917946040).

Almost surely, 2^3671649349 is an apocalyptic number.

It is an amenable number.

3671649349 is a deficient number, since it is larger than the sum of its proper divisors (134811).

3671649349 is an equidigital number, since it uses as much as digits as its factorization.

3671649349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134810.

The product of its digits is 2939328, while the sum is 52.

The square root of 3671649349 is about 60594.1362592124. The cubic root of 3671649349 is about 1542.7198448545.

The spelling of 3671649349 in words is "three billion, six hundred seventy-one million, six hundred forty-nine thousand, three hundred forty-nine".