16434769 has 4 divisors (see below), whose sum is σ = 17698996. Its totient is φ = 15170544.

The previous prime is 16434757. The next prime is 16434773. The reversal of 16434769 is 96743461.

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 10368400 + 6066369 = 3220^2 + 2463^2 .

It is a cyclic number.

It is not a de Polignac number, because 16434769 - 2⁷ = 16434641 is a prime.

It is a super-2 number, since 2×16434769² = 540203264166722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16434749) 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, 632094 + ... + 632119.

It is an arithmetic number, because the mean of its divisors is an integer number (4424749).

Almost surely, 2^16434769 is an apocalyptic number.

It is an amenable number.

16434769 is a deficient number, since it is larger than the sum of its proper divisors (1264227).

16434769 is a wasteful number, since it uses less digits than its factorization.

16434769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264226.

The product of its digits is 108864, while the sum is 40.

The square root of 16434769 is about 4053.9818697177. The cubic root of 16434769 is about 254.2462375368.

The spelling of 16434769 in words is "sixteen million, four hundred thirty-four thousand, seven hundred sixty-nine".