613291089 has 8 divisors (see below), whose sum is σ = 825818112. Its totient is φ = 404812400.

The previous prime is 613291087. The next prime is 613291093. The reversal of 613291089 is 980192316.

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 613291089 - 2¹ = 613291087 is a prime.

It is a super-2 number, since 2×613291089² = 752251919693611842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (613291087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011729 + ... + 1012334.

It is an arithmetic number, because the mean of its divisors is an integer number (103227264).

Almost surely, 2^613291089 is an apocalyptic number.

It is an amenable number.

613291089 is a deficient number, since it is larger than the sum of its proper divisors (212527023).

613291089 is a wasteful number, since it uses less digits than its factorization.

613291089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024167.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 613291089 is about 24764.7145955692. The cubic root of 613291089 is about 849.6150917016.

The spelling of 613291089 in words is "six hundred thirteen million, two hundred ninety-one thousand, eighty-nine".