16706481 has 16 divisors (see below), whose sum is σ = 24443328. Its totient is φ = 10065600.

The previous prime is 16706477. The next prime is 16706507. The reversal of 16706481 is 18460761.

It is a happy number.

It is not a de Polignac number, because 16706481 - 2² = 16706477 is a prime.

It is a super-2 number, since 2×16706481² = 558213014806722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16706401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4575 + ... + 7371.

It is an arithmetic number, because the mean of its divisors is an integer number (1527708).

Almost surely, 2^16706481 is an apocalyptic number.

16706481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16706481 is a deficient number, since it is larger than the sum of its proper divisors (7736847).

16706481 is a wasteful number, since it uses less digits than its factorization.

16706481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 16706481 is about 4087.3562360039. The cubic root of 16706481 is about 255.6397163751.

The spelling of 16706481 in words is "sixteen million, seven hundred six thousand, four hundred eighty-one".