3659973 has 4 divisors (see below), whose sum is σ = 4879968. Its totient is φ = 2439980.

The previous prime is 3659959. The next prime is 3659993. The reversal of 3659973 is 3799563.

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 a cyclic number.

It is not a de Polignac number, because 3659973 - 2⁵ = 3659941 is a prime.

It is a D-number.

It is a Curzon number.

3659973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659923) 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, 609993 + ... + 609998.

It is an arithmetic number, because the mean of its divisors is an integer number (1219992).

Almost surely, 2^3659973 is an apocalyptic number.

It is an amenable number.

3659973 is a deficient number, since it is larger than the sum of its proper divisors (1219995).

3659973 is a wasteful number, since it uses less digits than its factorization.

3659973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219994.

The product of its digits is 153090, while the sum is 42.

The square root of 3659973 is about 1913.1055903948. The cubic root of 3659973 is about 154.1082754602.

The spelling of 3659973 in words is "three million, six hundred fifty-nine thousand, nine hundred seventy-three".