16997398 has 16 divisors (see below), whose sum is σ = 28129680. Its totient is φ = 7638400.

The previous prime is 16997377. The next prime is 16997401. The reversal of 16997398 is 89379961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2383 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (1758105).

Almost surely, 2^16997398 is an apocalyptic number.

16997398 is a deficient number, since it is larger than the sum of its proper divisors (11132282).

16997398 is a wasteful number, since it uses less digits than its factorization.

16997398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783.

The product of its digits is 734832, while the sum is 52.

The square root of 16997398 is about 4122.7900746946. The cubic root of 16997398 is about 257.1150398186.

It can be divided in two parts, 169973 and 98, that added together give a palindrome (170071).

The spelling of 16997398 in words is "sixteen million, nine hundred ninety-seven thousand, three hundred ninety-eight".