613697099 has 4 divisors (see below), whose sum is σ = 613748640. Its totient is φ = 613645560.

The previous prime is 613697089. The next prime is 613697113. The reversal of 613697099 is 990796316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613697099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613697009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237 + ... + 35105.

It is an arithmetic number, because the mean of its divisors is an integer number (153437160).

Almost surely, 2^613697099 is an apocalyptic number.

613697099 is a deficient number, since it is larger than the sum of its proper divisors (51541).

613697099 is a wasteful number, since it uses less digits than its factorization.

613697099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51540.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 613697099 is about 24772.9105879790. The cubic root of 613697099 is about 849.8025372915.

The spelling of 613697099 in words is "six hundred thirteen million, six hundred ninety-seven thousand, ninety-nine".