39680081 has 8 divisors (see below), whose sum is σ = 45816960. Its totient is φ = 33660288.

The previous prime is 39680077. The next prime is 39680089. The reversal of 39680081 is 18008693.

39680081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39680081 - 2² = 39680077 is a prime.

It is a super-2 number, since 2×39680081² = 3149017656333122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39680089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28541 + ... + 29898.

It is an arithmetic number, because the mean of its divisors is an integer number (5727120).

Almost surely, 2^39680081 is an apocalyptic number.

It is an amenable number.

39680081 is a deficient number, since it is larger than the sum of its proper divisors (6136879).

39680081 is an equidigital number, since it uses as much as digits as its factorization.

39680081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58543.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 39680081 is about 6299.2127285876. The cubic root of 39680081 is about 341.0809914173.

The spelling of 39680081 in words is "thirty-nine million, six hundred eighty thousand, eighty-one".