39673641 has 8 divisors (see below), whose sum is σ = 60455104. Its totient is φ = 22670640.

The previous prime is 39673637. The next prime is 39673663. The reversal of 39673641 is 14637693.

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

It is not a de Polignac number, because 39673641 - 2² = 39673637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39673641.

It is not an unprimeable number, because it can be changed into a prime (39673681) 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, 944590 + ... + 944631.

It is an arithmetic number, because the mean of its divisors is an integer number (7556888).

Almost surely, 2^39673641 is an apocalyptic number.

It is an amenable number.

39673641 is a deficient number, since it is larger than the sum of its proper divisors (20781463).

39673641 is a wasteful number, since it uses less digits than its factorization.

39673641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889231.

The product of its digits is 81648, while the sum is 39.

The square root of 39673641 is about 6298.7015328558. The cubic root of 39673641 is about 341.0625381584.

The spelling of 39673641 in words is "thirty-nine million, six hundred seventy-three thousand, six hundred forty-one".