3218989047 has 4 divisors (see below), whose sum is σ = 4291985400. Its totient is φ = 2145992696.

The previous prime is 3218989043. The next prime is 3218989051. The reversal of 3218989047 is 7409898123.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3218989043) and next prime (3218989051).

It is a cyclic number.

It is not a de Polignac number, because 3218989047 - 2² = 3218989043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218989043) 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, 536498172 + ... + 536498177.

It is an arithmetic number, because the mean of its divisors is an integer number (1072996350).

Almost surely, 2^3218989047 is an apocalyptic number.

3218989047 is a deficient number, since it is larger than the sum of its proper divisors (1072996353).

3218989047 is a wasteful number, since it uses less digits than its factorization.

3218989047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072996352.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 3218989047 is about 56736.1352843142. The cubic root of 3218989047 is about 1476.5216963898.

The spelling of 3218989047 in words is "three billion, two hundred eighteen million, nine hundred eighty-nine thousand, forty-seven".