39873073 has 4 divisors (see below), whose sum is σ = 39935728. Its totient is φ = 39810420.

The previous prime is 39873059. The next prime is 39873079. The reversal of 39873073 is 37037893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37037893 = 617 ⋅60029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39873073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39873079) 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, 30363 + ... + 31648.

It is an arithmetic number, because the mean of its divisors is an integer number (9983932).

Almost surely, 2^39873073 is an apocalyptic number.

It is an amenable number.

39873073 is a deficient number, since it is larger than the sum of its proper divisors (62655).

39873073 is an equidigital number, since it uses as much as digits as its factorization.

39873073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62654.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 39873073 is about 6314.5128869929. The cubic root of 39873073 is about 341.6330691796.

The spelling of 39873073 in words is "thirty-nine million, eight hundred seventy-three thousand, seventy-three".