16698541 has 2 divisors, whose sum is σ = 16698542. Its totient is φ = 16698540.

The previous prime is 16698533. The next prime is 16698559. The reversal of 16698541 is 14589661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 417316 = 4035^2 + 646^2 .

It is a cyclic number.

It is not a de Polignac number, because 16698541 - 2³ = 16698533 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16698494 and 16698503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16618541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349270 + 8349271.

It is an arithmetic number, because the mean of its divisors is an integer number (8349271).

Almost surely, 2^16698541 is an apocalyptic number.

It is an amenable number.

16698541 is a deficient number, since it is larger than the sum of its proper divisors (1).

16698541 is an equidigital number, since it uses as much as digits as its factorization.

16698541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 16698541 is about 4086.3848325874. The cubic root of 16698541 is about 255.5992111166.

The spelling of 16698541 in words is "sixteen million, six hundred ninety-eight thousand, five hundred forty-one".