842939867 has 8 divisors (see below), whose sum is σ = 1050938112. Its totient is φ = 656836200.

The previous prime is 842939861. The next prime is 842939873. The reversal of 842939867 is 768939248.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (842939861) and next prime (842939873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 842939867 - 2¹² = 842935771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842939861) 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 7 ways as a sum of consecutive naturals, for example, 5473559 + ... + 5473712.

It is an arithmetic number, because the mean of its divisors is an integer number (131367264).

Almost surely, 2^842939867 is an apocalyptic number.

842939867 is a deficient number, since it is larger than the sum of its proper divisors (207998245).

842939867 is a wasteful number, since it uses less digits than its factorization.

842939867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947289.

The product of its digits is 5225472, while the sum is 56.

The square root of 842939867 is about 29033.4267181812. The cubic root of 842939867 is about 944.6382598736.

The spelling of 842939867 in words is "eight hundred forty-two million, nine hundred thirty-nine thousand, eight hundred sixty-seven".