4897760257 has 4 divisors (see below), whose sum is σ = 5274511060. Its totient is φ = 4521009456.

The previous prime is 4897760251. The next prime is 4897760261. The reversal of 4897760257 is 7520677984.

It is a Cunningham number, because it is equal to 69984²+1.

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 724471056 + 4173289201 = 26916^2 + 64601^2 .

It is a cyclic number.

It is not a de Polignac number, because 4897760257 - 2²⁷ = 4763542529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4897760198 and 4897760207.

It is not an unprimeable number, because it can be changed into a prime (4897760251) 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, 188375382 + ... + 188375407.

It is an arithmetic number, because the mean of its divisors is an integer number (1318627765).

Almost surely, 2^4897760257 is an apocalyptic number.

It is an amenable number.

4897760257 is a deficient number, since it is larger than the sum of its proper divisors (376750803).

4897760257 is a wasteful number, since it uses less digits than its factorization.

4897760257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376750802.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The square root of 4897760257 is about 69984.0000071445. Note that the first 5 decimals coincide. The cubic root of 4897760257 is about 1698.2404235629.

The spelling of 4897760257 in words is "four billion, eight hundred ninety-seven million, seven hundred sixty thousand, two hundred fifty-seven".