16814947 has 2 divisors, whose sum is σ = 16814948. Its totient is φ = 16814946.

The previous prime is 16814933. The next prime is 16814953. The reversal of 16814947 is 74941861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16814947 - 2¹¹ = 16812899 is a prime.

It is a super-2 number, since 2×16814947² = 565484885225618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16814957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8407473 + 8407474.

It is an arithmetic number, because the mean of its divisors is an integer number (8407474).

Almost surely, 2^16814947 is an apocalyptic number.

16814947 is a deficient number, since it is larger than the sum of its proper divisors (1).

16814947 is an equidigital number, since it uses as much as digits as its factorization.

16814947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 16814947 is about 4100.6032483038. The cubic root of 16814947 is about 256.1917661048.

The spelling of 16814947 in words is "sixteen million, eight hundred fourteen thousand, nine hundred forty-seven".