613582397 has 4 divisors (see below), whose sum is σ = 620975040. Its totient is φ = 606189756.

The previous prime is 613582393. The next prime is 613582421. The reversal of 613582397 is 793285316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 613582397 - 2² = 613582393 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 (613582391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3696197 + ... + 3696362.

It is an arithmetic number, because the mean of its divisors is an integer number (155243760).

Almost surely, 2^613582397 is an apocalyptic number.

It is an amenable number.

613582397 is a deficient number, since it is larger than the sum of its proper divisors (7392643).

613582397 is an equidigital number, since it uses as much as digits as its factorization.

613582397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7392642.

The product of its digits is 272160, while the sum is 44.

The square root of 613582397 is about 24770.5954106881. The cubic root of 613582397 is about 849.7495903659.

The spelling of 613582397 in words is "six hundred thirteen million, five hundred eighty-two thousand, three hundred ninety-seven".