609818413 has 2 divisors, whose sum is σ = 609818414. Its totient is φ = 609818412.

The previous prime is 609818393. The next prime is 609818431. The reversal of 609818413 is 314818906.

Together with next prime (609818431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582643044 + 27175369 = 24138^2 + 5213^2 .

It is a cyclic number.

It is not a de Polignac number, because 609818413 - 2⁵ = 609818381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609858413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304909206 + 304909207.

It is an arithmetic number, because the mean of its divisors is an integer number (304909207).

Almost surely, 2^609818413 is an apocalyptic number.

It is an amenable number.

609818413 is a deficient number, since it is larger than the sum of its proper divisors (1).

609818413 is an equidigital number, since it uses as much as digits as its factorization.

609818413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 609818413 is about 24694.5016754742. The cubic root of 609818413 is about 848.0084460748.

The spelling of 609818413 in words is "six hundred nine million, eight hundred eighteen thousand, four hundred thirteen".