16900705 has 4 divisors (see below), whose sum is σ = 20280852. Its totient is φ = 13520560.

The previous prime is 16900691. The next prime is 16900739. The reversal of 16900705 is 50700961.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4397409 + 12503296 = 2097^2 + 3536^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16900705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690066 + ... + 1690075.

It is an arithmetic number, because the mean of its divisors is an integer number (5070213).

Almost surely, 2^16900705 is an apocalyptic number.

It is an amenable number.

16900705 is a deficient number, since it is larger than the sum of its proper divisors (3380147).

16900705 is an equidigital number, since it uses as much as digits as its factorization.

16900705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380146.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 16900705 is about 4111.0467036997. The cubic root of 16900705 is about 256.6265627639.

The spelling of 16900705 in words is "sixteen million, nine hundred thousand, seven hundred five".