16434641 has 2 divisors, whose sum is σ = 16434642. Its totient is φ = 16434640.

The previous prime is 16434629. The next prime is 16434647. The reversal of 16434641 is 14643461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13476241 + 2958400 = 3671^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 16434641 - 2¹⁰ = 16433617 is a prime.

It is not a weakly prime, because it can be changed into another prime (16434647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8217320 + 8217321.

It is an arithmetic number, because the mean of its divisors is an integer number (8217321).

Almost surely, 2^16434641 is an apocalyptic number.

It is an amenable number.

16434641 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434641 is an equidigital number, since it uses as much as digits as its factorization.

16434641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 16434641 is about 4053.9660827392. The cubic root of 16434641 is about 254.2455774809.

The spelling of 16434641 in words is "sixteen million, four hundred thirty-four thousand, six hundred forty-one".