336751021 has 2 divisors, whose sum is σ = 336751022. Its totient is φ = 336751020.

The previous prime is 336751013. The next prime is 336751067. The reversal of 336751021 is 120157633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331058025 + 5692996 = 18195^2 + 2386^2 .

It is an emirp because it is prime and its reverse (120157633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 336751021 - 2³ = 336751013 is a prime.

It is a super-2 number, since 2×336751021² = 226802500289084882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (336751321) 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, 168375510 + 168375511.

It is an arithmetic number, because the mean of its divisors is an integer number (168375511).

Almost surely, 2^336751021 is an apocalyptic number.

It is an amenable number.

336751021 is a deficient number, since it is larger than the sum of its proper divisors (1).

336751021 is an equidigital number, since it uses as much as digits as its factorization.

336751021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 336751021 is about 18350.7771225090. Note that the first 3 decimals coincide. The cubic root of 336751021 is about 695.7229135778.

The spelling of 336751021 in words is "three hundred thirty-six million, seven hundred fifty-one thousand, twenty-one".