2047589917 has 4 divisors (see below), whose sum is σ = 2047739616. Its totient is φ = 2047440220.

The previous prime is 2047589911. The next prime is 2047589963. The reversal of 2047589917 is 7199857402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2047589917 - 2²³ = 2039201309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047589911) 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, 52009 + ... + 82462.

It is an arithmetic number, because the mean of its divisors is an integer number (511934904).

Almost surely, 2^2047589917 is an apocalyptic number.

It is an amenable number.

2047589917 is a deficient number, since it is larger than the sum of its proper divisors (149699).

2047589917 is a wasteful number, since it uses less digits than its factorization.

2047589917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149698.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The square root of 2047589917 is about 45250.3029492621. The cubic root of 2047589917 is about 1269.8360746944.

The spelling of 2047589917 in words is "two billion, forty-seven million, five hundred eighty-nine thousand, nine hundred seventeen".