429961673 has 4 divisors (see below), whose sum is σ = 430109460. Its totient is φ = 429813888.

The previous prime is 429961667. The next prime is 429961681. The reversal of 429961673 is 376169924.

It is a happy number.

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 109265209 + 320696464 = 10453^2 + 17908^2 .

It is a cyclic number.

It is not a de Polignac number, because 429961673 - 2¹⁰ = 429960649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429961633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69440 + ... + 75377.

It is an arithmetic number, because the mean of its divisors is an integer number (107527365).

Almost surely, 2^429961673 is an apocalyptic number.

It is an amenable number.

429961673 is a deficient number, since it is larger than the sum of its proper divisors (147787).

429961673 is a wasteful number, since it uses less digits than its factorization.

429961673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147786.

The product of its digits is 489888, while the sum is 47.

The square root of 429961673 is about 20735.5171867017. The cubic root of 429961673 is about 754.7618054793.

The spelling of 429961673 in words is "four hundred twenty-nine million, nine hundred sixty-one thousand, six hundred seventy-three".