39982147 has 4 divisors (see below), whose sum is σ = 42334056. Its totient is φ = 37630240.

The previous prime is 39982123. The next prime is 39982171. The reversal of 39982147 is 74128993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74128993 = 17 ⋅4360529.

It is an interprime number because it is at equal distance from previous prime (39982123) and next prime (39982171).

It is a cyclic number.

It is not a de Polignac number, because 39982147 - 2¹¹ = 39980099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39982447) 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, 1175929 + ... + 1175962.

It is an arithmetic number, because the mean of its divisors is an integer number (10583514).

Almost surely, 2^39982147 is an apocalyptic number.

39982147 is a deficient number, since it is larger than the sum of its proper divisors (2351909).

39982147 is a wasteful number, since it uses less digits than its factorization.

39982147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351908.

The product of its digits is 108864, while the sum is 43.

The square root of 39982147 is about 6323.1437592388. The cubic root of 39982147 is about 341.9443014294.

The spelling of 39982147 in words is "thirty-nine million, nine hundred eighty-two thousand, one hundred forty-seven".