613655371 has 6 divisors (see below), whose sum is σ = 713844060. Its totient is φ = 525990276.

The previous prime is 613655353. The next prime is 613655377. The reversal of 613655371 is 173556316.

It is not a de Polignac number, because 613655371 - 2¹⁷ = 613524299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613655371.

It is not an unprimeable number, because it can be changed into a prime (613655377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6261741 + ... + 6261838.

It is an arithmetic number, because the mean of its divisors is an integer number (118974010).

Almost surely, 2^613655371 is an apocalyptic number.

613655371 is a deficient number, since it is larger than the sum of its proper divisors (100188689).

613655371 is a wasteful number, since it uses less digits than its factorization.

613655371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523593 (or 12523586 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 613655371 is about 24772.0683633806. The cubic root of 613655371 is about 849.7832762347.

The spelling of 613655371 in words is "six hundred thirteen million, six hundred fifty-five thousand, three hundred seventy-one".