4729129 has 4 divisors (see below), whose sum is σ = 4733584. Its totient is φ = 4724676.

The previous prime is 4729069. The next prime is 4729133. The reversal of 4729129 is 9219274.

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, 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 4729129 - 2⁹ = 4728617 is a prime.

It is a super-2 number, since 2×4729129² = 44729322197282, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

4729129 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4729094 and 4729103.

It is not an unprimeable number, because it can be changed into a prime (4729139) 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, 394 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (1183396).

Almost surely, 2^4729129 is an apocalyptic number.

It is an amenable number.

4729129 is a deficient number, since it is larger than the sum of its proper divisors (4455).

4729129 is a wasteful number, since it uses less digits than its factorization.

4729129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454.

The product of its digits is 9072, while the sum is 34.

The square root of 4729129 is about 2174.6560647606. The cubic root of 4729129 is about 167.8522060934.

The spelling of 4729129 in words is "four million, seven hundred twenty-nine thousand, one hundred twenty-nine".