839487142 has 16 divisors (see below), whose sum is σ = 1356736752. Its totient is φ = 387272160.

The previous prime is 839487113. The next prime is 839487197. The reversal of 839487142 is 241784938.

It is a junction number, because it is equal to n+sod(n) for n = 839487092 and 839487101.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 59428 + ... + 72184.

It is an arithmetic number, because the mean of its divisors is an integer number (84796047).

Almost surely, 2^839487142 is an apocalyptic number.

839487142 is a deficient number, since it is larger than the sum of its proper divisors (517249610).

839487142 is a wasteful number, since it uses less digits than its factorization.

839487142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303.

The product of its digits is 387072, while the sum is 46.

The square root of 839487142 is about 28973.9045004293. The cubic root of 839487142 is about 943.3467325972.

The spelling of 839487142 in words is "eight hundred thirty-nine million, four hundred eighty-seven thousand, one hundred forty-two".