1087434839 has 4 divisors (see below), whose sum is σ = 1087504800. Its totient is φ = 1087364880.

The previous prime is 1087434827. The next prime is 1087434851. The reversal of 1087434839 is 9384347801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1087434827) and next prime (1087434851).

It is a cyclic number.

It is not a de Polignac number, because 1087434839 - 2⁸ = 1087434583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1087434793 and 1087434802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087434899) 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 3 ways as a sum of consecutive naturals, for example, 14 + ... + 46635.

It is an arithmetic number, because the mean of its divisors is an integer number (271876200).

Almost surely, 2^1087434839 is an apocalyptic number.

1087434839 is a deficient number, since it is larger than the sum of its proper divisors (69961).

1087434839 is an equidigital number, since it uses as much as digits as its factorization.

1087434839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69960.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 1087434839 is about 32976.2769123502. The cubic root of 1087434839 is about 1028.3345186448.

The spelling of 1087434839 in words is "one billion, eighty-seven million, four hundred thirty-four thousand, eight hundred thirty-nine".