429178889 has 8 divisors (see below), whose sum is σ = 458595720. Its totient is φ = 400225536.

The previous prime is 429178861. The next prime is 429178891. The reversal of 429178889 is 988871924.

It can be written as a sum of positive squares in 4 ways, for example, as 119137225 + 310041664 = 10915^2 + 17608^2 .

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 429178889 - 2²⁴ = 412401673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429172889) 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, 113954 + ... + 117659.

It is an arithmetic number, because the mean of its divisors is an integer number (57324465).

Almost surely, 2^429178889 is an apocalyptic number.

It is an amenable number.

429178889 is a deficient number, since it is larger than the sum of its proper divisors (29416831).

429178889 is a wasteful number, since it uses less digits than its factorization.

429178889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231739.

The product of its digits is 2322432, while the sum is 56.

The square root of 429178889 is about 20716.6331482700. The cubic root of 429178889 is about 754.3034899211.

The spelling of 429178889 in words is "four hundred twenty-nine million, one hundred seventy-eight thousand, eight hundred eighty-nine".