613872371 has 4 divisors (see below), whose sum is σ = 701568432. Its totient is φ = 526176312.

The previous prime is 613872367. The next prime is 613872379. The reversal of 613872371 is 173278316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 613872371 - 2² = 613872367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613872379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43848020 + ... + 43848033.

It is an arithmetic number, because the mean of its divisors is an integer number (175392108).

Almost surely, 2^613872371 is an apocalyptic number.

613872371 is a deficient number, since it is larger than the sum of its proper divisors (87696061).

613872371 is an equidigital number, since it uses as much as digits as its factorization.

613872371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87696060.

The product of its digits is 42336, while the sum is 38.

The square root of 613872371 is about 24776.4479092545. The cubic root of 613872371 is about 849.8834308426.

The spelling of 613872371 in words is "six hundred thirteen million, eight hundred seventy-two thousand, three hundred seventy-one".