487621907 has 2 divisors, whose sum is σ = 487621908. Its totient is φ = 487621906.

The previous prime is 487621903. The next prime is 487621943. The reversal of 487621907 is 709126784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 487621907 - 2² = 487621903 is a prime.

It is not a weakly prime, because it can be changed into another prime (487621903) 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, 243810953 + 243810954.

It is an arithmetic number, because the mean of its divisors is an integer number (243810954).

Almost surely, 2^487621907 is an apocalyptic number.

487621907 is a deficient number, since it is larger than the sum of its proper divisors (1).

487621907 is an equidigital number, since it uses as much as digits as its factorization.

487621907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 487621907 is about 22082.1626431833. The cubic root of 487621907 is about 787.0960559401.

The spelling of 487621907 in words is "four hundred eighty-seven million, six hundred twenty-one thousand, nine hundred seven".