487945637 has 2 divisors, whose sum is σ = 487945638. Its totient is φ = 487945636.

The previous prime is 487945559. The next prime is 487945687. The reversal of 487945637 is 736549784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474978436 + 12967201 = 21794^2 + 3601^2 .

It is a cyclic number.

It is not a de Polignac number, because 487945637 - 2¹² = 487941541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487945687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243972818 + 243972819.

It is an arithmetic number, because the mean of its divisors is an integer number (243972819).

Almost surely, 2^487945637 is an apocalyptic number.

It is an amenable number.

487945637 is a deficient number, since it is larger than the sum of its proper divisors (1).

487945637 is an equidigital number, since it uses as much as digits as its factorization.

487945637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 53.

The square root of 487945637 is about 22089.4915514142. The cubic root of 487945637 is about 787.2702005899.

The spelling of 487945637 in words is "four hundred eighty-seven million, nine hundred forty-five thousand, six hundred thirty-seven".