2491627417 has 4 divisors (see below), whose sum is σ = 2491754020. Its totient is φ = 2491500816.

The previous prime is 2491627399. The next prime is 2491627433. The reversal of 2491627417 is 7147261942.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1156748121 + 1334879296 = 34011^2 + 36536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2491627417 - 2²⁷ = 2357409689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491627477) 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, 26742 + ... + 75487.

It is an arithmetic number, because the mean of its divisors is an integer number (622938505).

Almost surely, 2^2491627417 is an apocalyptic number.

It is an amenable number.

2491627417 is a deficient number, since it is larger than the sum of its proper divisors (126603).

2491627417 is a wasteful number, since it uses less digits than its factorization.

2491627417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126602.

The product of its digits is 169344, while the sum is 43.

The square root of 2491627417 is about 49916.2039522238. The cubic root of 2491627417 is about 1355.6920013034.

The spelling of 2491627417 in words is "two billion, four hundred ninety-one million, six hundred twenty-seven thousand, four hundred seventeen".