487769897 has 2 divisors, whose sum is σ = 487769898. Its totient is φ = 487769896.

The previous prime is 487769869. The next prime is 487769911. The reversal of 487769897 is 798967784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282105616 + 205664281 = 16796^2 + 14341^2 .

It is a cyclic number.

It is not a de Polignac number, because 487769897 - 2¹² = 487765801 is a prime.

It is not a weakly prime, because it can be changed into another prime (487769837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243884948 + 243884949.

It is an arithmetic number, because the mean of its divisors is an integer number (243884949).

Almost surely, 2^487769897 is an apocalyptic number.

It is an amenable number.

487769897 is a deficient number, since it is larger than the sum of its proper divisors (1).

487769897 is an equidigital number, since it uses as much as digits as its factorization.

487769897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 65.

The square root of 487769897 is about 22085.5132835984. The cubic root of 487769897 is about 787.1756740225.

The spelling of 487769897 in words is "four hundred eighty-seven million, seven hundred sixty-nine thousand, eight hundred ninety-seven".