16475861 has 2 divisors, whose sum is σ = 16475862. Its totient is φ = 16475860.

The previous prime is 16475813. The next prime is 16475867. The reversal of 16475861 is 16857461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 4813636 = 3415^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 16475861 - 2¹⁰ = 16474837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16475867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8237930 + 8237931.

It is an arithmetic number, because the mean of its divisors is an integer number (8237931).

Almost surely, 2^16475861 is an apocalyptic number.

It is an amenable number.

16475861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16475861 is an equidigital number, since it uses as much as digits as its factorization.

16475861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 16475861 is about 4059.0468092891. The cubic root of 16475861 is about 254.4579592258.

The spelling of 16475861 in words is "sixteen million, four hundred seventy-five thousand, eight hundred sixty-one".