39982705 has 8 divisors (see below), whose sum is σ = 54833472. Its totient is φ = 27416688.

The previous prime is 39982699. The next prime is 39982729. The reversal of 39982705 is 50728993.

It is a happy number.

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 39982705 - 2⁵ = 39982673 is a prime.

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 571147 + ... + 571216.

It is an arithmetic number, because the mean of its divisors is an integer number (6854184).

Almost surely, 2^39982705 is an apocalyptic number.

39982705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39982705 is a deficient number, since it is larger than the sum of its proper divisors (14850767).

39982705 is a wasteful number, since it uses less digits than its factorization.

39982705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142375.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 39982705 is about 6323.1878827060. The cubic root of 39982705 is about 341.9458921730.

The spelling of 39982705 in words is "thirty-nine million, nine hundred eighty-two thousand, seven hundred five".