336999981 has 16 divisors (see below), whose sum is σ = 465629760. Its totient is φ = 216545280.

The previous prime is 336999953. The next prime is 337000007. The reversal of 336999981 is 189999633.

It is not a de Polignac number, because 336999981 - 2¹¹ = 336997933 is a prime.

It is a super-2 number, since 2×336999981² = 227137974388000722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336999931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52746 + ... + 58788.

It is an arithmetic number, because the mean of its divisors is an integer number (29101860).

Almost surely, 2^336999981 is an apocalyptic number.

It is an amenable number.

336999981 is a deficient number, since it is larger than the sum of its proper divisors (128629779).

336999981 is a wasteful number, since it uses less digits than its factorization.

336999981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6716.

The product of its digits is 2834352, while the sum is 57.

The square root of 336999981 is about 18357.5592331878. The cubic root of 336999981 is about 695.8943206405.

The spelling of 336999981 in words is "three hundred thirty-six million, nine hundred ninety-nine thousand, nine hundred eighty-one".