606986251 has 2 divisors, whose sum is σ = 606986252. Its totient is φ = 606986250.

The previous prime is 606986249. The next prime is 606986267. The reversal of 606986251 is 152689606.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 606986251 - 2¹ = 606986249 is a prime.

It is a super-3 number, since 3×606986251³ (a number of 27 digits) contains 333 as substring.

Together with 606986249, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 606986198 and 606986207.

It is not a weakly prime, because it can be changed into another prime (606986201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303493125 + 303493126.

It is an arithmetic number, because the mean of its divisors is an integer number (303493126).

Almost surely, 2^606986251 is an apocalyptic number.

606986251 is a deficient number, since it is larger than the sum of its proper divisors (1).

606986251 is an equidigital number, since it uses as much as digits as its factorization.

606986251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 606986251 is about 24637.0909605822. The cubic root of 606986251 is about 846.6936148001.

The spelling of 606986251 in words is "six hundred six million, nine hundred eighty-six thousand, two hundred fifty-one".