16464869 has 2 divisors, whose sum is σ = 16464870. Its totient is φ = 16464868.

The previous prime is 16464863. The next prime is 16464881. The reversal of 16464869 is 96846461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 2439844 = 3745^2 + 1562^2 .

It is a cyclic number.

It is not a de Polignac number, because 16464869 - 2⁴ = 16464853 is a prime.

It is a super-2 number, since 2×16464869² = 542183822374322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232434 + 8232435.

It is an arithmetic number, because the mean of its divisors is an integer number (8232435).

Almost surely, 2^16464869 is an apocalyptic number.

It is an amenable number.

16464869 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464869 is an equidigital number, since it uses as much as digits as its factorization.

16464869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 16464869 is about 4057.6925709078. The cubic root of 16464869 is about 254.4013587618.

The spelling of 16464869 in words is "sixteen million, four hundred sixty-four thousand, eight hundred sixty-nine".