3641993 has 4 divisors (see below), whose sum is σ = 3653328. Its totient is φ = 3630660.

The previous prime is 3641987. The next prime is 3641999. The reversal of 3641993 is 3991463.

3641993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is an interprime number because it is at equal distance from previous prime (3641987) and next prime (3641999).

It is a cyclic number.

It is not a de Polignac number, because 3641993 - 2¹² = 3637897 is a prime.

It is a super-2 number, since 2×3641993² = 26528226024098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3641999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171 + ... + 5832.

It is an arithmetic number, because the mean of its divisors is an integer number (913332).

Almost surely, 2^3641993 is an apocalyptic number.

It is an amenable number.

3641993 is a deficient number, since it is larger than the sum of its proper divisors (11335).

3641993 is a wasteful number, since it uses less digits than its factorization.

3641993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334.

The product of its digits is 17496, while the sum is 35.

The square root of 3641993 is about 1908.4006392789. The cubic root of 3641993 is about 153.8555034126.

The spelling of 3641993 in words is "three million, six hundred forty-one thousand, nine hundred ninety-three".