2604370891 has 8 divisors (see below), whose sum is σ = 2733317280. Its totient is φ = 2476733952.

The previous prime is 2604370871. The next prime is 2604370919. The reversal of 2604370891 is 1980734062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2604370891 - 2²⁵ = 2570816459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2604370871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323286 + ... + 331243.

It is an arithmetic number, because the mean of its divisors is an integer number (341664660).

Almost surely, 2^2604370891 is an apocalyptic number.

2604370891 is a deficient number, since it is larger than the sum of its proper divisors (128946389).

2604370891 is a wasteful number, since it uses less digits than its factorization.

2604370891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654725.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2604370891 is about 51033.0372503930. The cubic root of 2604370891 is about 1375.8389839069.

The spelling of 2604370891 in words is "two billion, six hundred four million, three hundred seventy thousand, eight hundred ninety-one".