429038891 has 4 divisors (see below), whose sum is σ = 429180000. Its totient is φ = 428897784.

The previous prime is 429038881. The next prime is 429038899. The reversal of 429038891 is 198830924.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 429038891 - 2¹⁰ = 429037867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429038899) 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, 65891 + ... + 72108.

It is an arithmetic number, because the mean of its divisors is an integer number (107295000).

Almost surely, 2^429038891 is an apocalyptic number.

429038891 is a deficient number, since it is larger than the sum of its proper divisors (141109).

429038891 is a wasteful number, since it uses less digits than its factorization.

429038891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141108.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 429038891 is about 20713.2539935183. The cubic root of 429038891 is about 754.2214631586.

The spelling of 429038891 in words is "four hundred twenty-nine million, thirty-eight thousand, eight hundred ninety-one".