16808494 has 4 divisors (see below), whose sum is σ = 25212744. Its totient is φ = 8404246.

The previous prime is 16808459. The next prime is 16808497. The reversal of 16808494 is 49480861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49480861 = 719 ⋅68819.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202122 + ... + 4202125.

It is an arithmetic number, because the mean of its divisors is an integer number (6303186).

Almost surely, 2^16808494 is an apocalyptic number.

16808494 is a deficient number, since it is larger than the sum of its proper divisors (8404250).

16808494 is an equidigital number, since it uses as much as digits as its factorization.

16808494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404249.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 16808494 is about 4099.8163373498. The cubic root of 16808494 is about 256.1589893736.

The spelling of 16808494 in words is "sixteen million, eight hundred eight thousand, four hundred ninety-four".