16900493 has 2 divisors, whose sum is σ = 16900494. Its totient is φ = 16900492.

The previous prime is 16900483. The next prime is 16900511. The reversal of 16900493 is 39400961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12482089 + 4418404 = 3533^2 + 2102^2 .

It is a cyclic number.

It is not a de Polignac number, because 16900493 - 2⁸ = 16900237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16900483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8450246 + 8450247.

It is an arithmetic number, because the mean of its divisors is an integer number (8450247).

Almost surely, 2^16900493 is an apocalyptic number.

It is an amenable number.

16900493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16900493 is an equidigital number, since it uses as much as digits as its factorization.

16900493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 16900493 is about 4111.0209194311. The cubic root of 16900493 is about 256.6254897306.

The spelling of 16900493 in words is "sixteen million, nine hundred thousand, four hundred ninety-three".