839460987 has 12 divisors (see below), whose sum is σ = 1215157320. Its totient is φ = 558439488.

The previous prime is 839460961. The next prime is 839460991. The reversal of 839460987 is 789064938.

It is not a de Polignac number, because 839460987 - 2⁷ = 839460859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (839460887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95662 + ... + 104067.

It is an arithmetic number, because the mean of its divisors is an integer number (101263110).

Almost surely, 2^839460987 is an apocalyptic number.

839460987 is a deficient number, since it is larger than the sum of its proper divisors (375696333).

839460987 is a wasteful number, since it uses less digits than its factorization.

839460987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200202 (or 200199 counting only the distinct ones).

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

The square root of 839460987 is about 28973.4531424889. The cubic root of 839460987 is about 943.3369355482.

The spelling of 839460987 in words is "eight hundred thirty-nine million, four hundred sixty thousand, nine hundred eighty-seven".