16986031 has 2 divisors, whose sum is σ = 16986032. Its totient is φ = 16986030.

The previous prime is 16986017. The next prime is 16986037. The reversal of 16986031 is 13068961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16986031 - 2¹¹ = 16983983 is a prime.

It is a super-2 number, since 2×16986031² = 577050498265922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16986037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493015 + 8493016.

It is an arithmetic number, because the mean of its divisors is an integer number (8493016).

Almost surely, 2^16986031 is an apocalyptic number.

16986031 is a deficient number, since it is larger than the sum of its proper divisors (1).

16986031 is an equidigital number, since it uses as much as digits as its factorization.

16986031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 16986031 is about 4121.4112874111. The cubic root of 16986031 is about 257.0577118597.

The spelling of 16986031 in words is "sixteen million, nine hundred eighty-six thousand, thirty-one".