4391487682 has 4 divisors (see below), whose sum is σ = 6587231526. Its totient is φ = 2195743840.

The previous prime is 4391487679. The next prime is 4391487691. The reversal of 4391487682 is 2867841934.

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

It can be written as a sum of positive squares in only one way, i.e., 2952726921 + 1438760761 = 54339^2 + 37931^2 .

It is a super-2 number, since 2×4391487682² = 38570328122315466248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097871919 + ... + 1097871922.

Almost surely, 2^4391487682 is an apocalyptic number.

4391487682 is a deficient number, since it is larger than the sum of its proper divisors (2195743844).

4391487682 is a wasteful number, since it uses less digits than its factorization.

4391487682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195743843.

The product of its digits is 2322432, while the sum is 52.

The square root of 4391487682 is about 66268.3007327033. The cubic root of 4391487682 is about 1637.5851433847.

The spelling of 4391487682 in words is "four billion, three hundred ninety-one million, four hundred eighty-seven thousand, six hundred eighty-two".