487906839 has 24 divisors (see below), whose sum is σ = 812972160. Its totient is φ = 276194448.

The previous prime is 487906747. The next prime is 487906841. The reversal of 487906839 is 938609784.

It is not a de Polignac number, because 487906839 - 2¹² = 487902743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487906849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29449 + ... + 42930.

It is an arithmetic number, because the mean of its divisors is an integer number (33873840).

Almost surely, 2^487906839 is an apocalyptic number.

487906839 is a deficient number, since it is larger than the sum of its proper divisors (325065321).

487906839 is a wasteful number, since it uses less digits than its factorization.

487906839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72499 (or 72496 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 487906839 is about 22088.6133335708. The cubic root of 487906839 is about 787.2493339766.

The spelling of 487906839 in words is "four hundred eighty-seven million, nine hundred six thousand, eight hundred thirty-nine".