613044985 has 8 divisors (see below), whose sum is σ = 840747456. Its totient is φ = 420373680.

The previous prime is 613044983. The next prime is 613044989. The reversal of 613044985 is 589440316.

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

It is not a de Polignac number, because 613044985 - 2¹ = 613044983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613044983) 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, 8757751 + ... + 8757820.

It is an arithmetic number, because the mean of its divisors is an integer number (105093432).

Almost surely, 2^613044985 is an apocalyptic number.

It is an amenable number.

613044985 is a deficient number, since it is larger than the sum of its proper divisors (227702471).

613044985 is a wasteful number, since it uses less digits than its factorization.

613044985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515583.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 613044985 is about 24759.7452531321. The cubic root of 613044985 is about 849.5014308038.

It can be divided in two parts, 6130 and 44985, that added together give a palindrome (51115).

The spelling of 613044985 in words is "six hundred thirteen million, forty-four thousand, nine hundred eighty-five".