3990535673 has 4 divisors (see below), whose sum is σ = 4164037248. Its totient is φ = 3817034100.

The previous prime is 3990535649. The next prime is 3990535697. The reversal of 3990535673 is 3765350993.

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 (3990535649) and next prime (3990535697).

It is a cyclic number.

It is not a de Polignac number, because 3990535673 - 2¹⁰ = 3990534649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3990535603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86750753 + ... + 86750798.

It is an arithmetic number, because the mean of its divisors is an integer number (1041009312).

Almost surely, 2^3990535673 is an apocalyptic number.

It is an amenable number.

3990535673 is a deficient number, since it is larger than the sum of its proper divisors (173501575).

3990535673 is a wasteful number, since it uses less digits than its factorization.

3990535673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173501574.

The product of its (nonzero) digits is 2296350, while the sum is 50.

The square root of 3990535673 is about 63170.6868175422. The cubic root of 3990535673 is about 1586.1480896913.

The spelling of 3990535673 in words is "three billion, nine hundred ninety million, five hundred thirty-five thousand, six hundred seventy-three".