3633381 has 12 divisors (see below), whose sum is σ = 5429580. Its totient is φ = 2338560.

The previous prime is 3633373. The next prime is 3633391. The reversal of 3633381 is 1833363.

It can be written as a sum of positive squares in 2 ways, for example, as 2030625 + 1602756 = 1425^2 + 1266^2 .

It is not a de Polignac number, because 3633381 - 2³ = 3633373 is a prime.

It is a super-2 number, since 2×3633381² = 26402914982322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3633361) 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 11 ways as a sum of consecutive naturals, for example, 6700 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (452465).

Almost surely, 2^3633381 is an apocalyptic number.

It is an amenable number.

3633381 is a deficient number, since it is larger than the sum of its proper divisors (1796199).

3633381 is a wasteful number, since it uses less digits than its factorization.

3633381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956 (or 13953 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 3633381 is about 1906.1429642081. The cubic root of 3633381 is about 153.7341367730.

The spelling of 3633381 in words is "three million, six hundred thirty-three thousand, three hundred eighty-one".