429894427 has 4 divisors (see below), whose sum is σ = 430640056. Its totient is φ = 429148800.

The previous prime is 429894373. The next prime is 429894431. The reversal of 429894427 is 724498924.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429894427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429894457) 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, 371949 + ... + 373102.

It is an arithmetic number, because the mean of its divisors is an integer number (107660014).

Almost surely, 2^429894427 is an apocalyptic number.

429894427 is a deficient number, since it is larger than the sum of its proper divisors (745629).

429894427 is an equidigital number, since it uses as much as digits as its factorization.

429894427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745628.

The product of its digits is 1161216, while the sum is 49.

The square root of 429894427 is about 20733.8956059878. The cubic root of 429894427 is about 754.7224551823.

The spelling of 429894427 in words is "four hundred twenty-nine million, eight hundred ninety-four thousand, four hundred twenty-seven".