4239973 has 4 divisors (see below), whose sum is σ = 4263840. Its totient is φ = 4216108.

The previous prime is 4239971. The next prime is 4239979. The reversal of 4239973 is 3799324.

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.

It is a cyclic number.

It is not a de Polignac number, because 4239973 - 2¹ = 4239971 is a prime.

It is a Duffinian number.

4239973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239971) 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, 11665 + ... + 12022.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960).

Almost surely, 2^4239973 is an apocalyptic number.

It is an amenable number.

4239973 is a deficient number, since it is larger than the sum of its proper divisors (23867).

4239973 is a wasteful number, since it uses less digits than its factorization.

4239973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23866.

The product of its digits is 40824, while the sum is 37.

The square root of 4239973 is about 2059.1194720074. The cubic root of 4239973 is about 161.8531031338.

The spelling of 4239973 in words is "four million, two hundred thirty-nine thousand, nine hundred seventy-three".