3625731349 has 4 divisors (see below), whose sum is σ = 3626110060. Its totient is φ = 3625352640.

The previous prime is 3625731341. The next prime is 3625731377. The reversal of 3625731349 is 9431375263.

It is a happy number.

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 3115649124 + 510082225 = 55818^2 + 22585^2 .

It is a cyclic number.

It is not a de Polignac number, because 3625731349 - 2³ = 3625731341 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 (3625731341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174612 + ... + 194269.

It is an arithmetic number, because the mean of its divisors is an integer number (906527515).

Almost surely, 2^3625731349 is an apocalyptic number.

It is an amenable number.

3625731349 is a deficient number, since it is larger than the sum of its proper divisors (378711).

3625731349 is an equidigital number, since it uses as much as digits as its factorization.

3625731349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378710.

The product of its digits is 408240, while the sum is 43.

The square root of 3625731349 is about 60214.0461105214. The cubic root of 3625731349 is about 1536.2617132911.

The spelling of 3625731349 in words is "three billion, six hundred twenty-five million, seven hundred thirty-one thousand, three hundred forty-nine".