336991887 has 8 divisors (see below), whose sum is σ = 499247280. Its totient is φ = 224661240.

The previous prime is 336991873. The next prime is 336991909. The reversal of 336991887 is 788199633.

It is not a de Polignac number, because 336991887 - 2²⁶ = 269883023 is a prime.

It is a super-2 number, since 2×336991887² = 227127063807641538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336991807) 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 7 ways as a sum of consecutive naturals, for example, 6240564 + ... + 6240617.

It is an arithmetic number, because the mean of its divisors is an integer number (62405910).

Almost surely, 2^336991887 is an apocalyptic number.

336991887 is a deficient number, since it is larger than the sum of its proper divisors (162255393).

336991887 is a wasteful number, since it uses less digits than its factorization.

336991887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481190 (or 12481184 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 336991887 is about 18357.3387777205. The cubic root of 336991887 is about 695.8887493111. Note that the first 3 decimals are identical.

The spelling of 336991887 in words is "three hundred thirty-six million, nine hundred ninety-one thousand, eight hundred eighty-seven".