613426439 has 4 divisors (see below), whose sum is σ = 622066320. Its totient is φ = 604786560.

The previous prime is 613426417. The next prime is 613426483. The reversal of 613426439 is 934624316.

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 613426439 - 2¹⁶ = 613360903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613426409) 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, 4319834 + ... + 4319975.

It is an arithmetic number, because the mean of its divisors is an integer number (155516580).

Almost surely, 2^613426439 is an apocalyptic number.

613426439 is a deficient number, since it is larger than the sum of its proper divisors (8639881).

613426439 is an equidigital number, since it uses as much as digits as its factorization.

613426439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639880.

The product of its digits is 93312, while the sum is 38.

The square root of 613426439 is about 24767.4471635653. The cubic root of 613426439 is about 849.6775889106.

The spelling of 613426439 in words is "six hundred thirteen million, four hundred twenty-six thousand, four hundred thirty-nine".