4292729 has 4 divisors (see below), whose sum is σ = 4905984. Its totient is φ = 3679476.

The previous prime is 4292723. The next prime is 4292749. The reversal of 4292729 is 9272924.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-4292729 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2³ + 9⁴ + 2⁵ + 7 + 2¹⁵ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4292723) 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, 306617 + ... + 306630.

It is an arithmetic number, because the mean of its divisors is an integer number (1226496).

Almost surely, 2^4292729 is an apocalyptic number.

It is an amenable number.

4292729 is a deficient number, since it is larger than the sum of its proper divisors (613255).

4292729 is an equidigital number, since it uses as much as digits as its factorization.

4292729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613254.

The product of its digits is 18144, while the sum is 35.

The square root of 4292729 is about 2071.8901997934. The cubic root of 4292729 is about 162.5216255243.

The spelling of 4292729 in words is "four million, two hundred ninety-two thousand, seven hundred twenty-nine".