429646985 has 8 divisors (see below), whose sum is σ = 518861256. Its totient is φ = 341527680.

The previous prime is 429646979. The next prime is 429646993. The reversal of 429646985 is 589646924.

It can be written as a sum of positive squares in 4 ways, for example, as 101022601 + 328624384 = 10051^2 + 18128^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-429646985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272876 + ... + 274445.

It is an arithmetic number, because the mean of its divisors is an integer number (64857657).

Almost surely, 2^429646985 is an apocalyptic number.

It is an amenable number.

429646985 is a deficient number, since it is larger than the sum of its proper divisors (89214271).

429646985 is a wasteful number, since it uses less digits than its factorization.

429646985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547483.

The product of its digits is 3732480, while the sum is 53.

The square root of 429646985 is about 20727.9276581138. The cubic root of 429646985 is about 754.5776243713.

The spelling of 429646985 in words is "four hundred twenty-nine million, six hundred forty-six thousand, nine hundred eighty-five".