16382813 has 2 divisors, whose sum is σ = 16382814. Its totient is φ = 16382812.

The previous prime is 16382801. The next prime is 16382819. The reversal of 16382813 is 31828361.

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., 14417209 + 1965604 = 3797^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 16382813 - 2⁴ = 16382797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16382813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16382819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8191406 + 8191407.

It is an arithmetic number, because the mean of its divisors is an integer number (8191407).

Almost surely, 2^16382813 is an apocalyptic number.

It is an amenable number.

16382813 is a deficient number, since it is larger than the sum of its proper divisors (1).

16382813 is an equidigital number, since it uses as much as digits as its factorization.

16382813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 16382813 is about 4047.5687764385. The cubic root of 16382813 is about 253.9780345566.

The spelling of 16382813 in words is "sixteen million, three hundred eighty-two thousand, eight hundred thirteen".