427800429 has 18 divisors (see below), whose sum is σ = 718821870. Its totient is φ = 244457136.

The previous prime is 427800407. The next prime is 427800469. The reversal of 427800429 is 924008724.

It can be written as a sum of positive squares in only one way, i.e., 300155625 + 127644804 = 17325^2 + 11298^2 .

It is not a de Polignac number, because 427800429 - 2⁵ = 427800397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427800393 and 427800402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427800469) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 484594 + ... + 485475.

Almost surely, 2^427800429 is an apocalyptic number.

427800429 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

427800429 is a deficient number, since it is larger than the sum of its proper divisors (291021441).

427800429 is a wasteful number, since it uses less digits than its factorization.

427800429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970089 (or 970079 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 427800429 is about 20683.3369889871. The cubic root of 427800429 is about 753.4950528410.

The spelling of 427800429 in words is "four hundred twenty-seven million, eight hundred thousand, four hundred twenty-nine".