39708479 has 4 divisors (see below), whose sum is σ = 40631976. Its totient is φ = 38784984.

The previous prime is 39708469. The next prime is 39708497. The reversal of 39708479 is 97480793.

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 39708479 - 2¹⁶ = 39642943 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 (39708439) 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, 461684 + ... + 461769.

It is an arithmetic number, because the mean of its divisors is an integer number (10157994).

Almost surely, 2^39708479 is an apocalyptic number.

39708479 is a deficient number, since it is larger than the sum of its proper divisors (923497).

39708479 is an equidigital number, since it uses as much as digits as its factorization.

39708479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923496.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 39708479 is about 6301.4664166367. The cubic root of 39708479 is about 341.1623396067.

The spelling of 39708479 in words is "thirty-nine million, seven hundred eight thousand, four hundred seventy-nine".