487621513 has 2 divisors, whose sum is σ = 487621514. Its totient is φ = 487621512.

The previous prime is 487621507. The next prime is 487621543. The reversal of 487621513 is 315126784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483472144 + 4149369 = 21988^2 + 2037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487621513 is a prime.

It is equal to p_25737454 and since 487621513 and 25737454 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (487621543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243810756 + 243810757.

It is an arithmetic number, because the mean of its divisors is an integer number (243810757).

Almost surely, 2^487621513 is an apocalyptic number.

It is an amenable number.

487621513 is a deficient number, since it is larger than the sum of its proper divisors (1).

487621513 is an equidigital number, since it uses as much as digits as its factorization.

487621513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 487621513 is about 22082.1537219538. The cubic root of 487621513 is about 787.0958439481.

The spelling of 487621513 in words is "four hundred eighty-seven million, six hundred twenty-one thousand, five hundred thirteen".