4172439 has 4 divisors (see below), whose sum is σ = 5563256. Its totient is φ = 2781624.

The previous prime is 4172431. The next prime is 4172471. The reversal of 4172439 is 9342714.

It is a happy number.

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

It is not a de Polignac number, because 4172439 - 2³ = 4172431 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172431) 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, 695404 + ... + 695409.

It is an arithmetic number, because the mean of its divisors is an integer number (1390814).

Almost surely, 2^4172439 is an apocalyptic number.

4172439 is a deficient number, since it is larger than the sum of its proper divisors (1390817).

4172439 is a wasteful number, since it uses less digits than its factorization.

4172439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390816.

The product of its digits is 6048, while the sum is 30.

The square root of 4172439 is about 2042.6548900879. The cubic root of 4172439 is about 160.9891715002.

The spelling of 4172439 in words is "four million, one hundred seventy-two thousand, four hundred thirty-nine".