39916079 has 4 divisors (see below), whose sum is σ = 45618384. Its totient is φ = 34213776.

The previous prime is 39916073. The next prime is 39916091. The reversal of 39916079 is 97061993.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39916079 - 2⁸ = 39915823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39916073) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2851142 + ... + 2851155.

It is an arithmetic number, because the mean of its divisors is an integer number (11404596).

Almost surely, 2^39916079 is an apocalyptic number.

39916079 is a deficient number, since it is larger than the sum of its proper divisors (5702305).

39916079 is an equidigital number, since it uses as much as digits as its factorization.

39916079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702304.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 39916079 is about 6317.9172992371. The cubic root of 39916079 is about 341.7558503918.

The spelling of 39916079 in words is "thirty-nine million, nine hundred sixteen thousand, seventy-nine".