4172429 has 4 divisors (see below), whose sum is σ = 4417884. Its totient is φ = 3926976.

The previous prime is 4172417. The next prime is 4172431. The reversal of 4172429 is 9242714.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3602404 + 570025 = 1898^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172429 - 2²⁰ = 3123853 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 (4172479) 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, 122702 + ... + 122735.

It is an arithmetic number, because the mean of its divisors is an integer number (1104471).

Almost surely, 2^4172429 is an apocalyptic number.

It is an amenable number.

4172429 is a deficient number, since it is larger than the sum of its proper divisors (245455).

4172429 is a wasteful number, since it uses less digits than its factorization.

4172429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245454.

The product of its digits is 4032, while the sum is 29.

The square root of 4172429 is about 2042.6524422916. The cubic root of 4172429 is about 160.9890428869.

The spelling of 4172429 in words is "four million, one hundred seventy-two thousand, four hundred twenty-nine".