613007620 has 12 divisors (see below), whose sum is σ = 1287316044. Its totient is φ = 245203040.

The previous prime is 613007617. The next prime is 613007657. The reversal of 613007620 is 26700316.

It can be written as a sum of positive squares in 2 ways, for example, as 327465216 + 285542404 = 18096^2 + 16898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15325171 + ... + 15325210.

It is an arithmetic number, because the mean of its divisors is an integer number (107276337).

Almost surely, 2^613007620 is an apocalyptic number.

It is an amenable number.

613007620 is an abundant number, since it is smaller than the sum of its proper divisors (674308424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613007620 is a wasteful number, since it uses less digits than its factorization.

613007620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30650390 (or 30650388 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 613007620 is about 24758.9906902523. The cubic root of 613007620 is about 849.4841714582.

Adding to 613007620 its reverse (26700316), we get a palindrome (639707936).

The spelling of 613007620 in words is "six hundred thirteen million, seven thousand, six hundred twenty".