613414891 has 4 divisors (see below), whose sum is σ = 613468800. Its totient is φ = 613360984.

The previous prime is 613414883. The next prime is 613414939. The reversal of 613414891 is 198414316.

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 not a de Polignac number, because 613414891 - 2³ = 613414883 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 613414891.

It is not an unprimeable number, because it can be changed into a prime (613414801) 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, 2476 + ... + 35113.

It is an arithmetic number, because the mean of its divisors is an integer number (153367200).

Almost surely, 2^613414891 is an apocalyptic number.

613414891 is a deficient number, since it is larger than the sum of its proper divisors (53909).

613414891 is a wasteful number, since it uses less digits than its factorization.

613414891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53908.

The product of its digits is 20736, while the sum is 37.

The square root of 613414891 is about 24767.2140338795. The cubic root of 613414891 is about 849.6722570361.

It can be divided in two parts, 6134 and 14891, that added together give a square (21025 = 145²).

The spelling of 613414891 in words is "six hundred thirteen million, four hundred fourteen thousand, eight hundred ninety-one".