3923473561 has 24 divisors (see below), whose sum is σ = 4829652864. Its totient is φ = 3171389760.

The previous prime is 3923473531. The next prime is 3923473577. The reversal of 3923473561 is 1653743293.

It is a happy number.

It is not a de Polignac number, because 3923473561 - 2¹⁹ = 3922949273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3923473501) 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 23 ways as a sum of consecutive naturals, for example, 55501 + ... + 104533.

It is an arithmetic number, because the mean of its divisors is an integer number (201235536).

Almost surely, 2^3923473561 is an apocalyptic number.

It is an amenable number.

3923473561 is a deficient number, since it is larger than the sum of its proper divisors (906179303).

3923473561 is a wasteful number, since it uses less digits than its factorization.

3923473561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49141 (or 49134 counting only the distinct ones).

The product of its digits is 408240, while the sum is 43.

The square root of 3923473561 is about 62637.6369365895. The cubic root of 3923473561 is about 1577.2126202121.

The spelling of 3923473561 in words is "three billion, nine hundred twenty-three million, four hundred seventy-three thousand, five hundred sixty-one".