613655977 has 24 divisors (see below), whose sum is σ = 713220480. Its totient is φ = 526125600.

The previous prime is 613655957. The next prime is 613655983. The reversal of 613655977 is 779556316.

It is not a de Polignac number, because 613655977 - 2⁷ = 613655849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 613655977.

It is not an unprimeable number, because it can be changed into a prime (613655927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673152 + ... + 674062.

It is an arithmetic number, because the mean of its divisors is an integer number (29717520).

Almost surely, 2^613655977 is an apocalyptic number.

It is an amenable number.

613655977 is a deficient number, since it is larger than the sum of its proper divisors (99564503).

613655977 is a wasteful number, since it uses less digits than its factorization.

613655977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1234 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 49.

The square root of 613655977 is about 24772.0805948955. The cubic root of 613655977 is about 849.7835559620.

The spelling of 613655977 in words is "six hundred thirteen million, six hundred fifty-five thousand, nine hundred seventy-seven".