3633772349 has 4 divisors (see below), whose sum is σ = 3667109820. Its totient is φ = 3600434880.

The previous prime is 3633772343. The next prime is 3633772381. The reversal of 3633772349 is 9432773363.

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 2345464900 + 1288307449 = 48430^2 + 35893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3633772349 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 (3633772343) 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, 16668572 + ... + 16668789.

It is an arithmetic number, because the mean of its divisors is an integer number (916777455).

Almost surely, 2^3633772349 is an apocalyptic number.

It is an amenable number.

3633772349 is a deficient number, since it is larger than the sum of its proper divisors (33337471).

3633772349 is a wasteful number, since it uses less digits than its factorization.

3633772349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33337470.

The product of its digits is 1714608, while the sum is 47.

The square root of 3633772349 is about 60280.7792666950. The cubic root of 3633772349 is about 1537.3965610804.

The spelling of 3633772349 in words is "three billion, six hundred thirty-three million, seven hundred seventy-two thousand, three hundred forty-nine".