613436447 has 8 divisors (see below), whose sum is σ = 669674544. Its totient is φ = 558491328.

The previous prime is 613436437. The next prime is 613436471. The reversal of 613436447 is 744634316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 613436447 - 2²⁰ = 612387871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613436447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613436407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322253 + ... + 324150.

It is an arithmetic number, because the mean of its divisors is an integer number (83709318).

Almost surely, 2^613436447 is an apocalyptic number.

613436447 is a deficient number, since it is larger than the sum of its proper divisors (56238097).

613436447 is a wasteful number, since it uses less digits than its factorization.

613436447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646489.

The product of its digits is 145152, while the sum is 38.

The square root of 613436447 is about 24767.6492021346. The cubic root of 613436447 is about 849.6822096913.

The spelling of 613436447 in words is "six hundred thirteen million, four hundred thirty-six thousand, four hundred forty-seven".