982247639 has 4 divisors (see below), whose sum is σ = 986537160. Its totient is φ = 977958120.

The previous prime is 982247627. The next prime is 982247657. The reversal of 982247639 is 936742289.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-982247639 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 (982247659) 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, 2144417 + ... + 2144874.

It is an arithmetic number, because the mean of its divisors is an integer number (246634290).

Almost surely, 2^982247639 is an apocalyptic number.

982247639 is a deficient number, since it is larger than the sum of its proper divisors (4289521).

982247639 is a wasteful number, since it uses less digits than its factorization.

982247639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289520.

The product of its digits is 1306368, while the sum is 50.

The square root of 982247639 is about 31340.8302219325. The cubic root of 982247639 is about 994.0471805892.

The spelling of 982247639 in words is "nine hundred eighty-two million, two hundred forty-seven thousand, six hundred thirty-nine".