609939419 has 4 divisors (see below), whose sum is σ = 611262960. Its totient is φ = 608615880.

The previous prime is 609939409. The next prime is 609939431. The reversal of 609939419 is 914939906.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 609939419 - 2⁴ = 609939403 is a prime.

It is a super-2 number, since 2×609939419² = 744052189700115122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (609939409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661079 + ... + 662000.

It is an arithmetic number, because the mean of its divisors is an integer number (152815740).

Almost surely, 2^609939419 is an apocalyptic number.

609939419 is a deficient number, since it is larger than the sum of its proper divisors (1323541).

609939419 is a wasteful number, since it uses less digits than its factorization.

609939419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323540.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 609939419 is about 24696.9516135089. The cubic root of 609939419 is about 848.0645323465.

The spelling of 609939419 in words is "six hundred nine million, nine hundred thirty-nine thousand, four hundred nineteen".