16961671 has 2 divisors, whose sum is σ = 16961672. Its totient is φ = 16961670.

The previous prime is 16961647. The next prime is 16961677. The reversal of 16961671 is 17616961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16961671 - 2⁷ = 16961543 is a prime.

It is a super-2 number, since 2×16961671² = 575396566224482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16961671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16961677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8480835 + 8480836.

It is an arithmetic number, because the mean of its divisors is an integer number (8480836).

Almost surely, 2^16961671 is an apocalyptic number.

16961671 is a deficient number, since it is larger than the sum of its proper divisors (1).

16961671 is an equidigital number, since it uses as much as digits as its factorization.

16961671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 16961671 is about 4118.4549287324. The cubic root of 16961671 is about 256.9347692351.

The spelling of 16961671 in words is "sixteen million, nine hundred sixty-one thousand, six hundred seventy-one".