609244387 has 2 divisors, whose sum is σ = 609244388. Its totient is φ = 609244386.

The previous prime is 609244373. The next prime is 609244417. The reversal of 609244387 is 783442906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609244387 - 2¹¹ = 609242339 is a prime.

It is not a weakly prime, because it can be changed into another prime (609244327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304622193 + 304622194.

It is an arithmetic number, because the mean of its divisors is an integer number (304622194).

Almost surely, 2^609244387 is an apocalyptic number.

609244387 is a deficient number, since it is larger than the sum of its proper divisors (1).

609244387 is an equidigital number, since it uses as much as digits as its factorization.

609244387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 609244387 is about 24682.8763923494. The cubic root of 609244387 is about 847.7422839398.

The spelling of 609244387 in words is "six hundred nine million, two hundred forty-four thousand, three hundred eighty-seven".