16780453 has 2 divisors, whose sum is σ = 16780454. Its totient is φ = 16780452.

The previous prime is 16780447. The next prime is 16780459. The reversal of 16780453 is 35408761.

It is a balanced prime because it is at equal distance from previous prime (16780447) and next prime (16780459).

It can be written as a sum of positive squares in only one way, i.e., 16507969 + 272484 = 4063^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 16780453 - 2²¹ = 14683301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16780459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8390226 + 8390227.

It is an arithmetic number, because the mean of its divisors is an integer number (8390227).

Almost surely, 2^16780453 is an apocalyptic number.

It is an amenable number.

16780453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16780453 is an equidigital number, since it uses as much as digits as its factorization.

16780453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 16780453 is about 4096.3951225437. The cubic root of 16780453 is about 256.0164631746.

The spelling of 16780453 in words is "sixteen million, seven hundred eighty thousand, four hundred fifty-three".