16477 has 2 divisors, whose sum is σ = 16478. Its totient is φ = 16476.

The previous prime is 16453. The next prime is 16481. The reversal of 16477 is 77461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12996 + 3481 = 114^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 16477 - 2⁷ = 16349 is a prime.

It is a d-powerful number, because it can be written as 1 + 6² + 4⁷ + 7 + 7² .

It is a nialpdrome in base 12 and base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8238 + 8239.

It is an arithmetic number, because the mean of its divisors is an integer number (8239).

2¹⁶⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

16477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16477 is an equidigital number, since it uses as much as digits as its factorization.

16477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 25.

The square root of 16477 is about 128.3627671874. The cubic root of 16477 is about 25.4463822772.

The spelling of 16477 in words is "sixteen thousand, four hundred seventy-seven".