3193987973 has 4 divisors (see below), whose sum is σ = 3484350528. Its totient is φ = 2903625420.

The previous prime is 3193987957. The next prime is 3193988003. The reversal of 3193987973 is 3797893913.

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 3193987973 - 2⁴ = 3193987957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3193987273) 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, 145181261 + ... + 145181282.

It is an arithmetic number, because the mean of its divisors is an integer number (871087632).

Almost surely, 2^3193987973 is an apocalyptic number.

It is an amenable number.

3193987973 is a deficient number, since it is larger than the sum of its proper divisors (290362555).

3193987973 is a wasteful number, since it uses less digits than its factorization.

3193987973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290362554.

The product of its digits is 7715736, while the sum is 59.

The square root of 3193987973 is about 56515.3781992123. The cubic root of 3193987973 is about 1472.6891668773.

The spelling of 3193987973 in words is "three billion, one hundred ninety-three million, nine hundred eighty-seven thousand, nine hundred seventy-three".