16974697 has 4 divisors (see below), whose sum is σ = 17388756. Its totient is φ = 16560640.

The previous prime is 16974689. The next prime is 16974719. The reversal of 16974697 is 79647961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79647961 = 97 ⋅821113.

It can be written as a sum of positive squares in 2 ways, for example, as 8886361 + 8088336 = 2981^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 16974697 - 2³ = 16974689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16974697.

It is not an unprimeable number, because it can be changed into a prime (16974647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206968 + ... + 207049.

It is an arithmetic number, because the mean of its divisors is an integer number (4347189).

Almost surely, 2^16974697 is an apocalyptic number.

It is an amenable number.

16974697 is a deficient number, since it is larger than the sum of its proper divisors (414059).

16974697 is an equidigital number, since it uses as much as digits as its factorization.

16974697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414058.

The product of its digits is 571536, while the sum is 49.

The square root of 16974697 is about 4120.0360435317. The cubic root of 16974697 is about 257.0005248618. Note that the first 3 decimals are identical.

It can be divided in two parts, 16974 and 697, that added together give a palindrome (17671).

The spelling of 16974697 in words is "sixteen million, nine hundred seventy-four thousand, six hundred ninety-seven".