613934945 has 16 divisors (see below), whose sum is σ = 793974720. Its totient is φ = 453034944.

The previous prime is 613934939. The next prime is 613934947. The reversal of 613934945 is 549439316.

613934945 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 613934945 - 2⁸ = 613934689 is a prime.

It is a super-2 number, since 2×613934945² = 753832233384306050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 613934896 and 613934905.

It is not an unprimeable number, because it can be changed into a prime (613934947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118826 + ... + 123884.

It is an arithmetic number, because the mean of its divisors is an integer number (49623420).

Almost surely, 2^613934945 is an apocalyptic number.

613934945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

613934945 is a deficient number, since it is larger than the sum of its proper divisors (180039775).

613934945 is a wasteful number, since it uses less digits than its factorization.

613934945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944.

The product of its digits is 349920, while the sum is 44.

The square root of 613934945 is about 24777.7106488876. The cubic root of 613934945 is about 849.9123069855.

The spelling of 613934945 in words is "six hundred thirteen million, nine hundred thirty-four thousand, nine hundred forty-five".