2657887247 has 2 divisors, whose sum is σ = 2657887248. Its totient is φ = 2657887246.

The previous prime is 2657887237. The next prime is 2657887259. The reversal of 2657887247 is 7427887562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2657887247 - 2¹⁰ = 2657886223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2657887192 and 2657887201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2657887217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328943623 + 1328943624.

It is an arithmetic number, because the mean of its divisors is an integer number (1328943624).

Almost surely, 2^2657887247 is an apocalyptic number.

2657887247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2657887247 is an equidigital number, since it uses as much as digits as its factorization.

2657887247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10536960, while the sum is 56.

The square root of 2657887247 is about 51554.7015023848. The cubic root of 2657887247 is about 1385.1990481427.

The spelling of 2657887247 in words is "two billion, six hundred fifty-seven million, eight hundred eighty-seven thousand, two hundred forty-seven".