3506656173 has 4 divisors (see below), whose sum is σ = 4675541568. Its totient is φ = 2337770780.

The previous prime is 3506656163. The next prime is 3506656177. The reversal of 3506656173 is 3716566053.

It is a happy number.

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 3506656173 - 2⁵ = 3506656141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506656177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584442693 + ... + 584442698.

It is an arithmetic number, because the mean of its divisors is an integer number (1168885392).

Almost surely, 2^3506656173 is an apocalyptic number.

It is an amenable number.

3506656173 is a deficient number, since it is larger than the sum of its proper divisors (1168885395).

3506656173 is a wasteful number, since it uses less digits than its factorization.

3506656173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168885394.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 3506656173 is about 59217.0260398139. The cubic root of 3506656173 is about 1519.2563555660.

The spelling of 3506656173 in words is "three billion, five hundred six million, six hundred fifty-six thousand, one hundred seventy-three".