613920830 has 32 divisors (see below), whose sum is σ = 1220940864. Its totient is φ = 221072896.

The previous prime is 613920817. The next prime is 613920877. The reversal of 613920830 is 38029316.

613920830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74597 + ... + 82416.

It is an arithmetic number, because the mean of its divisors is an integer number (38154402).

Almost surely, 2^613920830 is an apocalyptic number.

613920830 is a deficient number, since it is larger than the sum of its proper divisors (607020034).

613920830 is a wasteful number, since it uses less digits than its factorization.

613920830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157060.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 613920830 is about 24777.4258146402. The cubic root of 613920830 is about 849.9057934809.

The spelling of 613920830 in words is "six hundred thirteen million, nine hundred twenty thousand, eight hundred thirty".