487697251 has 2 divisors, whose sum is σ = 487697252. Its totient is φ = 487697250.

The previous prime is 487697237. The next prime is 487697261. The reversal of 487697251 is 152796784.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 487697251 - 2⁵ = 487697219 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 487697195 and 487697204.

It is not a weakly prime, because it can be changed into another prime (487697201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243848625 + 243848626.

It is an arithmetic number, because the mean of its divisors is an integer number (243848626).

Almost surely, 2^487697251 is an apocalyptic number.

487697251 is a deficient number, since it is larger than the sum of its proper divisors (1).

487697251 is an equidigital number, since it uses as much as digits as its factorization.

487697251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 487697251 is about 22083.8685696143. The cubic root of 487697251 is about 787.1365927511.

The spelling of 487697251 in words is "four hundred eighty-seven million, six hundred ninety-seven thousand, two hundred fifty-one".