336251621 has 2 divisors, whose sum is σ = 336251622. Its totient is φ = 336251620.

The previous prime is 336251609. The next prime is 336251659. The reversal of 336251621 is 126152633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185232100 + 151019521 = 13610^2 + 12289^2 .

It is a cyclic number.

It is not a de Polignac number, because 336251621 - 2¹⁸ = 335989477 is a prime.

It is a super-2 number, since 2×336251621² = 226130305250255282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (336251681) 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, 168125810 + 168125811.

It is an arithmetic number, because the mean of its divisors is an integer number (168125811).

Almost surely, 2^336251621 is an apocalyptic number.

It is an amenable number.

336251621 is a deficient number, since it is larger than the sum of its proper divisors (1).

336251621 is an equidigital number, since it uses as much as digits as its factorization.

336251621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 336251621 is about 18337.1650207986. The cubic root of 336251621 is about 695.3788256161.

The spelling of 336251621 in words is "three hundred thirty-six million, two hundred fifty-one thousand, six hundred twenty-one".