39973423 has 8 divisors (see below), whose sum is σ = 45724448. Its totient is φ = 34232544.

The previous prime is 39973421. The next prime is 39973429. The reversal of 39973423 is 32437993.

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

It is a cyclic number.

It is not a de Polignac number, because 39973423 - 2¹ = 39973421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39973421) 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, 10165 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (5715556).

Almost surely, 2^39973423 is an apocalyptic number.

39973423 is a deficient number, since it is larger than the sum of its proper divisors (5751025).

39973423 is a wasteful number, since it uses less digits than its factorization.

39973423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073.

The product of its digits is 122472, while the sum is 40.

The square root of 39973423 is about 6322.4538748812. The cubic root of 39973423 is about 341.9194291693.

The spelling of 39973423 in words is "thirty-nine million, nine hundred seventy-three thousand, four hundred twenty-three".