613321047 has 12 divisors (see below), whose sum is σ = 886648464. Its totient is φ = 408539040.

The previous prime is 613321043. The next prime is 613321061. The reversal of 613321047 is 740123316.

613321047 is a `hidden beast` number, since 613 + 3 + 2 + 1 + 0 + 47 = 666.

It is not a de Polignac number, because 613321047 - 2² = 613321043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 613321047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613321043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16854 + ... + 38867.

It is an arithmetic number, because the mean of its divisors is an integer number (73887372).

Almost surely, 2^613321047 is an apocalyptic number.

613321047 is a deficient number, since it is larger than the sum of its proper divisors (273327417).

613321047 is a wasteful number, since it uses less digits than its factorization.

613321047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56950 (or 56947 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 613321047 is about 24765.3194407017. The cubic root of 613321047 is about 849.6289254558.

The spelling of 613321047 in words is "six hundred thirteen million, three hundred twenty-one thousand, forty-seven".