16457669 has 2 divisors, whose sum is σ = 16457670. Its totient is φ = 16457668.

The previous prime is 16457611. The next prime is 16457677. The reversal of 16457669 is 96675461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12517444 + 3940225 = 3538^2 + 1985^2 .

It is an emirp because it is prime and its reverse (96675461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16457669 is a prime.

It is a super-2 number, since 2×16457669² = 541709737827122, 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 (16457269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228834 + 8228835.

It is an arithmetic number, because the mean of its divisors is an integer number (8228835).

Almost surely, 2^16457669 is an apocalyptic number.

It is an amenable number.

16457669 is a deficient number, since it is larger than the sum of its proper divisors (1).

16457669 is an equidigital number, since it uses as much as digits as its factorization.

16457669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 16457669 is about 4056.8052701603. The cubic root of 16457669 is about 254.3642705663.

The spelling of 16457669 in words is "sixteen million, four hundred fifty-seven thousand, six hundred sixty-nine".