39473923 has 4 divisors (see below), whose sum is σ = 40218768. Its totient is φ = 38729080.

The previous prime is 39473879. The next prime is 39473927. The reversal of 39473923 is 32937493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39473923 - 2¹³ = 39465731 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39473927) 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 3 ways as a sum of consecutive naturals, for example, 372343 + ... + 372448.

It is an arithmetic number, because the mean of its divisors is an integer number (10054692).

Almost surely, 2^39473923 is an apocalyptic number.

39473923 is a deficient number, since it is larger than the sum of its proper divisors (744845).

39473923 is an equidigital number, since it uses as much as digits as its factorization.

39473923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744844.

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

The square root of 39473923 is about 6282.8276277485. The cubic root of 39473923 is about 340.4892696378.

The spelling of 39473923 in words is "thirty-nine million, four hundred seventy-three thousand, nine hundred twenty-three".