16891298 has 4 divisors (see below), whose sum is σ = 25336950. Its totient is φ = 8445648.

The previous prime is 16891267. The next prime is 16891307. The reversal of 16891298 is 89219861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89219861 = 487 ⋅183203.

It can be written as a sum of positive squares in only one way, i.e., 13712209 + 3179089 = 3703^2 + 1783^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4222823 + ... + 4222826.

Almost surely, 2^16891298 is an apocalyptic number.

16891298 is a deficient number, since it is larger than the sum of its proper divisors (8445652).

16891298 is an equidigital number, since it uses as much as digits as its factorization.

16891298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8445651.

The product of its digits is 62208, while the sum is 44.

The square root of 16891298 is about 4109.9024319319. The cubic root of 16891298 is about 256.5789408036.

The spelling of 16891298 in words is "sixteen million, eight hundred ninety-one thousand, two hundred ninety-eight".