3659821043 has 4 divisors (see below), whose sum is σ = 3662657208. Its totient is φ = 3656984880.

The previous prime is 3659821027. The next prime is 3659821057. The reversal of 3659821043 is 3401289563.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3659821043 - 2⁴ = 3659821027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3659821073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416146 + ... + 1418727.

It is an arithmetic number, because the mean of its divisors is an integer number (915664302).

Almost surely, 2^3659821043 is an apocalyptic number.

3659821043 is a deficient number, since it is larger than the sum of its proper divisors (2836165).

3659821043 is a wasteful number, since it uses less digits than its factorization.

3659821043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836164.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 3659821043 is about 60496.4547969548. The cubic root of 3659821043 is about 1541.0614264339.

The spelling of 3659821043 in words is "three billion, six hundred fifty-nine million, eight hundred twenty-one thousand, forty-three".