609801583 has 2 divisors, whose sum is σ = 609801584. Its totient is φ = 609801582.

The previous prime is 609801559. The next prime is 609801587. The reversal of 609801583 is 385108906.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 609801583 - 2²¹ = 607704431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609801587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304900791 + 304900792.

It is an arithmetic number, because the mean of its divisors is an integer number (304900792).

Almost surely, 2^609801583 is an apocalyptic number.

609801583 is a deficient number, since it is larger than the sum of its proper divisors (1).

609801583 is an equidigital number, since it uses as much as digits as its factorization.

609801583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 609801583 is about 24694.1609090084. The cubic root of 609801583 is about 848.0006447834. Note that the first 3 decimals are identical.

The spelling of 609801583 in words is "six hundred nine million, eight hundred one thousand, five hundred eighty-three".