487625609 has 2 divisors, whose sum is σ = 487625610. Its totient is φ = 487625608.

The previous prime is 487625533. The next prime is 487625617. The reversal of 487625609 is 906526784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356454400 + 131171209 = 18880^2 + 11453^2 .

It is a cyclic number.

It is not a de Polignac number, because 487625609 - 2¹² = 487621513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (487625639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243812804 + 243812805.

It is an arithmetic number, because the mean of its divisors is an integer number (243812805).

Almost surely, 2^487625609 is an apocalyptic number.

It is an amenable number.

487625609 is a deficient number, since it is larger than the sum of its proper divisors (1).

487625609 is an equidigital number, since it uses as much as digits as its factorization.

487625609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 487625609 is about 22082.2464663358. The cubic root of 487625609 is about 787.0980477991.

The spelling of 487625609 in words is "four hundred eighty-seven million, six hundred twenty-five thousand, six hundred nine".