3221993977 has 4 divisors (see below), whose sum is σ = 3224168080. Its totient is φ = 3219819876.

The previous prime is 3221993963. The next prime is 3221994053. The reversal of 3221993977 is 7793991223.

It is a happy number.

3221993977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7793991223 = 3203 ⋅2433341.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221993977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221993927) 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, 1084827 + ... + 1087792.

It is an arithmetic number, because the mean of its divisors is an integer number (806042020).

Almost surely, 2^3221993977 is an apocalyptic number.

It is an amenable number.

3221993977 is a deficient number, since it is larger than the sum of its proper divisors (2174103).

3221993977 is a wasteful number, since it uses less digits than its factorization.

3221993977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174102.

The product of its digits is 1285956, while the sum is 52.

The square root of 3221993977 is about 56762.6107310085. The cubic root of 3221993977 is about 1476.9809984037.

The spelling of 3221993977 in words is "three billion, two hundred twenty-one million, nine hundred ninety-three thousand, nine hundred seventy-seven".