1002095839 has 2 divisors, whose sum is σ = 1002095840. Its totient is φ = 1002095838.

The previous prime is 1002095837. The next prime is 1002095867. The reversal of 1002095839 is 9385902001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002095839 - 2¹ = 1002095837 is a prime.

It is a super-2 number, since 2×1002095839² = 2008392141082227842, which contains 22 as substring.

Together with 1002095837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1002095798 and 1002095807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002095833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501047919 + 501047920.

It is an arithmetic number, because the mean of its divisors is an integer number (501047920).

Almost surely, 2^1002095839 is an apocalyptic number.

1002095839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002095839 is an equidigital number, since it uses as much as digits as its factorization.

1002095839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1002095839 is about 31655.8973810568. The cubic root of 1002095839 is about 1000.6981255074.

The spelling of 1002095839 in words is "one billion, two million, ninety-five thousand, eight hundred thirty-nine".