39872723 has 8 divisors (see below), whose sum is σ = 43947120. Its totient is φ = 35873280.

The previous prime is 39872713. The next prime is 39872737. The reversal of 39872723 is 32727893.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39872723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39872713) 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 7 ways as a sum of consecutive naturals, for example, 17618 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (5493390).

Almost surely, 2^39872723 is an apocalyptic number.

39872723 is a deficient number, since it is larger than the sum of its proper divisors (4074397).

39872723 is a wasteful number, since it uses less digits than its factorization.

39872723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37477.

The product of its digits is 127008, while the sum is 41.

The square root of 39872723 is about 6314.4851729971. The cubic root of 39872723 is about 341.6320695750.

The spelling of 39872723 in words is "thirty-nine million, eight hundred seventy-two thousand, seven hundred twenty-three".