39646479 has 8 divisors (see below), whose sum is σ = 53278720. Its totient is φ = 26222616.

The previous prime is 39646463. The next prime is 39646493. The reversal of 39646479 is 97464693.

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

It is not a de Polignac number, because 39646479 - 2⁴ = 39646463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39646429) 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, 51649 + ... + 52410.

It is an arithmetic number, because the mean of its divisors is an integer number (6659840).

Almost surely, 2^39646479 is an apocalyptic number.

39646479 is a deficient number, since it is larger than the sum of its proper divisors (13632241).

39646479 is a wasteful number, since it uses less digits than its factorization.

39646479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104189.

The product of its digits is 979776, while the sum is 48.

The square root of 39646479 is about 6296.5450050008. The cubic root of 39646479 is about 340.9846858331.

The spelling of 39646479 in words is "thirty-nine million, six hundred forty-six thousand, four hundred seventy-nine".