609093493 has 4 divisors (see below), whose sum is σ = 644922540. Its totient is φ = 573264448.

The previous prime is 609093491. The next prime is 609093509. The reversal of 609093493 is 394390906.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356378884 + 252714609 = 18878^2 + 15897^2 .

It is a cyclic number.

It is not a de Polignac number, because 609093493 - 2¹ = 609093491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609093491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17914498 + ... + 17914531.

It is an arithmetic number, because the mean of its divisors is an integer number (161230635).

Almost surely, 2^609093493 is an apocalyptic number.

It is an amenable number.

609093493 is a deficient number, since it is larger than the sum of its proper divisors (35829047).

609093493 is a wasteful number, since it uses less digits than its factorization.

609093493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35829046.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 609093493 is about 24679.8195495834. The cubic root of 609093493 is about 847.6722902509.

The spelling of 609093493 in words is "six hundred nine million, ninety-three thousand, four hundred ninety-three".