4172749 has 8 divisors (see below), whose sum is σ = 4898048. Its totient is φ = 3479760.

The previous prime is 4172747. The next prime is 4172759. The reversal of 4172749 is 9472714.

4172749 = 200² + 201² + ... + 273².

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 4172749 - 2¹ = 4172747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172747) 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, 7797 + ... + 8314.

It is an arithmetic number, because the mean of its divisors is an integer number (612256).

Almost surely, 2^4172749 is an apocalyptic number.

It is an amenable number.

4172749 is a deficient number, since it is larger than the sum of its proper divisors (725299).

4172749 is a wasteful number, since it uses less digits than its factorization.

4172749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155.

The product of its digits is 14112, while the sum is 34.

The square root of 4172749 is about 2042.7307703170. The cubic root of 4172749 is about 160.9931584094.

The spelling of 4172749 in words is "four million, one hundred seventy-two thousand, seven hundred forty-nine".