987381339 has 16 divisors (see below), whose sum is σ = 1505094912. Its totient is φ = 564025248.

The previous prime is 987381323. The next prime is 987381347. The reversal of 987381339 is 933183789.

It is a happy number.

It is not a de Polignac number, because 987381339 - 2⁴ = 987381323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 987381291 and 987381300.

It is not an unprimeable number, because it can be changed into a prime (987381359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74812 + ... + 87014.

It is an arithmetic number, because the mean of its divisors is an integer number (94068432).

Almost surely, 2^987381339 is an apocalyptic number.

987381339 is a deficient number, since it is larger than the sum of its proper divisors (517713573).

987381339 is a wasteful number, since it uses less digits than its factorization.

987381339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16066.

The product of its digits is 979776, while the sum is 51.

The square root of 987381339 is about 31422.6246357620. The cubic root of 987381339 is about 995.7759622946.

The spelling of 987381339 in words is "nine hundred eighty-seven million, three hundred eighty-one thousand, three hundred thirty-nine".