16870897 has 2 divisors, whose sum is σ = 16870898. Its totient is φ = 16870896.

The previous prime is 16870877. The next prime is 16870901. The reversal of 16870897 is 79807861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16353936 + 516961 = 4044^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 16870897 - 2¹¹ = 16868849 is a prime.

It is not a weakly prime, because it can be changed into another prime (16870877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8435448 + 8435449.

It is an arithmetic number, because the mean of its divisors is an integer number (8435449).

Almost surely, 2^16870897 is an apocalyptic number.

It is an amenable number.

16870897 is a deficient number, since it is larger than the sum of its proper divisors (1).

16870897 is an equidigital number, since it uses as much as digits as its factorization.

16870897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 16870897 is about 4107.4197496725. The cubic root of 16870897 is about 256.4756020755.

The spelling of 16870897 in words is "sixteen million, eight hundred seventy thousand, eight hundred ninety-seven".