16973653 has 2 divisors, whose sum is σ = 16973654. Its totient is φ = 16973652.

The previous prime is 16973611. The next prime is 16973681. The reversal of 16973653 is 35637961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12945604 + 4028049 = 3598^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 16973653 - 2⁹ = 16973141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16973603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8486826 + 8486827.

It is an arithmetic number, because the mean of its divisors is an integer number (8486827).

Almost surely, 2^16973653 is an apocalyptic number.

It is an amenable number.

16973653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16973653 is an equidigital number, since it uses as much as digits as its factorization.

16973653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 16973653 is about 4119.9093436628. The cubic root of 16973653 is about 256.9952559597.

The spelling of 16973653 in words is "sixteen million, nine hundred seventy-three thousand, six hundred fifty-three".