429771109 has 4 divisors (see below), whose sum is σ = 430406604. Its totient is φ = 429135616.

The previous prime is 429771103. The next prime is 429771113. The reversal of 429771109 is 901177924.

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 382202500 + 47568609 = 19550^2 + 6897^2 .

It is a cyclic number.

It is not a de Polignac number, because 429771109 - 2¹⁵ = 429738341 is a prime.

It is a super-2 number, since 2×429771109² = 369406412262179762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429771103) 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, 316732 + ... + 318085.

It is an arithmetic number, because the mean of its divisors is an integer number (107601651).

Almost surely, 2^429771109 is an apocalyptic number.

It is an amenable number.

429771109 is a deficient number, since it is larger than the sum of its proper divisors (635495).

429771109 is an equidigital number, since it uses as much as digits as its factorization.

429771109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635494.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 429771109 is about 20730.9215665874. The cubic root of 429771109 is about 754.6502826064.

The spelling of 429771109 in words is "four hundred twenty-nine million, seven hundred seventy-one thousand, one hundred nine".