39944607 has 4 divisors (see below), whose sum is σ = 53259480. Its totient is φ = 26629736.

The previous prime is 39944581. The next prime is 39944627. The reversal of 39944607 is 70644993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70644993 = 3 ⋅23548331.

It is a cyclic number.

It is not a de Polignac number, because 39944607 - 2¹⁶ = 39879071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39944627) 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, 6657432 + ... + 6657437.

It is an arithmetic number, because the mean of its divisors is an integer number (13314870).

Almost surely, 2^39944607 is an apocalyptic number.

39944607 is a deficient number, since it is larger than the sum of its proper divisors (13314873).

39944607 is a wasteful number, since it uses less digits than its factorization.

39944607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13314872.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 39944607 is about 6320.1746020185. The cubic root of 39944607 is about 341.8372485768.

The spelling of 39944607 in words is "thirty-nine million, nine hundred forty-four thousand, six hundred seven".