4492729 has 4 divisors (see below), whose sum is σ = 4496976. Its totient is φ = 4488484.

The previous prime is 4492727. The next prime is 4492753. The reversal of 4492729 is 9272944.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4492729 - 2¹ = 4492727 is a prime.

It is a super-2 number, since 2×4492729² = 40369227734882, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 4¹¹ + 9³ + 2¹¹ + 7 + 2¹⁵ + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4492723) 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, 882 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (1124244).

Almost surely, 2^4492729 is an apocalyptic number.

It is an amenable number.

4492729 is a deficient number, since it is larger than the sum of its proper divisors (4247).

4492729 is a wasteful number, since it uses less digits than its factorization.

4492729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246.

The product of its digits is 36288, while the sum is 37.

The square root of 4492729 is about 2119.6058595881. The cubic root of 4492729 is about 165.0073948323.

The spelling of 4492729 in words is "four million, four hundred ninety-two thousand, seven hundred twenty-nine".