336686689 has 4 divisors (see below), whose sum is σ = 344516656. Its totient is φ = 328856724.

The previous prime is 336686681. The next prime is 336686729. The reversal of 336686689 is 986686633.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 986686633 = 29 ⋅34023677.

It is a cyclic number.

It is not a de Polignac number, because 336686689 - 2³ = 336686681 is a prime.

It is a super-2 number, since 2×336686689² = 226715853099565442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (336686681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3914919 + ... + 3915004.

It is an arithmetic number, because the mean of its divisors is an integer number (86129164).

Almost surely, 2^336686689 is an apocalyptic number.

It is an amenable number.

336686689 is a deficient number, since it is larger than the sum of its proper divisors (7829967).

336686689 is an equidigital number, since it uses as much as digits as its factorization.

336686689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829966.

The product of its digits is 6718464, while the sum is 55.

The square root of 336686689 is about 18349.0241974880. The cubic root of 336686689 is about 695.6786077514.

The spelling of 336686689 in words is "three hundred thirty-six million, six hundred eighty-six thousand, six hundred eighty-nine".