336721963 has 2 divisors, whose sum is σ = 336721964. Its totient is φ = 336721962.

The previous prime is 336721961. The next prime is 336721991. The reversal of 336721963 is 369127633.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 336721963 - 2¹ = 336721961 is a prime.

It is a super-2 number, since 2×336721963² = 226763360733146738, which contains 22 as substring.

Together with 336721961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (336721961) 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 as a sum of consecutive naturals, namely, 168360981 + 168360982.

It is an arithmetic number, because the mean of its divisors is an integer number (168360982).

Almost surely, 2^336721963 is an apocalyptic number.

336721963 is a deficient number, since it is larger than the sum of its proper divisors (1).

336721963 is an equidigital number, since it uses as much as digits as its factorization.

336721963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 40.

The square root of 336721963 is about 18349.9853678416. The cubic root of 336721963 is about 695.7029018613.

The spelling of 336721963 in words is "three hundred thirty-six million, seven hundred twenty-one thousand, nine hundred sixty-three".