7982139 has 8 divisors (see below), whose sum is σ = 11610432. Its totient is φ = 4837640.

The previous prime is 7982137. The next prime is 7982141. The reversal of 7982139 is 9312897.

It is an interprime number because it is at equal distance from previous prime (7982137) and next prime (7982141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7982139 - 2¹ = 7982137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7982097 and 7982106.

It is not an unprimeable number, because it can be changed into a prime (7982137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120909 + ... + 120974.

It is an arithmetic number, because the mean of its divisors is an integer number (1451304).

Almost surely, 2^7982139 is an apocalyptic number.

7982139 is a deficient number, since it is larger than the sum of its proper divisors (3628293).

7982139 is a wasteful number, since it uses less digits than its factorization.

7982139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241897.

The product of its digits is 27216, while the sum is 39.

The square root of 7982139 is about 2825.2679518941. The cubic root of 7982139 is about 199.8510474265.

The spelling of 7982139 in words is "seven million, nine hundred eighty-two thousand, one hundred thirty-nine".