16698004 has 6 divisors (see below), whose sum is σ = 29221514. Its totient is φ = 8349000.

The previous prime is 16698001. The next prime is 16698007. The reversal of 16698004 is 40089661.

It is an interprime number because it is at equal distance from previous prime (16698001) and next prime (16698007).

It can be written as a sum of positive squares in only one way, i.e., 9622404 + 7075600 = 3102^2 + 2660^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16698001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2087247 + ... + 2087254.

Almost surely, 2^16698004 is an apocalyptic number.

It is an amenable number.

16698004 is a deficient number, since it is larger than the sum of its proper divisors (12523510).

16698004 is a wasteful number, since it uses less digits than its factorization.

16698004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174505 (or 4174503 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 16698004 is about 4086.3191260595. The cubic root of 16698004 is about 255.5964711916.

The spelling of 16698004 in words is "sixteen million, six hundred ninety-eight thousand, four".