487166957 has 2 divisors, whose sum is σ = 487166958. Its totient is φ = 487166956.

The previous prime is 487166951. The next prime is 487166959. The reversal of 487166957 is 759661784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462852196 + 24314761 = 21514^2 + 4931^2 .

It is a cyclic number.

It is not a de Polignac number, because 487166957 - 2⁶ = 487166893 is a prime.

Together with 487166959, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 487166899 and 487166908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487166951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243583478 + 243583479.

It is an arithmetic number, because the mean of its divisors is an integer number (243583479).

Almost surely, 2^487166957 is an apocalyptic number.

It is an amenable number.

487166957 is a deficient number, since it is larger than the sum of its proper divisors (1).

487166957 is an equidigital number, since it uses as much as digits as its factorization.

487166957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The square root of 487166957 is about 22071.8589384764. The cubic root of 487166957 is about 786.8511935657.

The spelling of 487166957 in words is "four hundred eighty-seven million, one hundred sixty-six thousand, nine hundred fifty-seven".