842299837 has 2 divisors, whose sum is σ = 842299838. Its totient is φ = 842299836.

The previous prime is 842299807. The next prime is 842299841. The reversal of 842299837 is 738992248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 634334596 + 207965241 = 25186^2 + 14421^2 .

It is a cyclic number.

It is not a de Polignac number, because 842299837 - 2¹⁹ = 841775549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842299807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421149918 + 421149919.

It is an arithmetic number, because the mean of its divisors is an integer number (421149919).

Almost surely, 2^842299837 is an apocalyptic number.

It is an amenable number.

842299837 is a deficient number, since it is larger than the sum of its proper divisors (1).

842299837 is an equidigital number, since it uses as much as digits as its factorization.

842299837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 842299837 is about 29022.4023299244. The cubic root of 842299837 is about 944.3991167137.

The spelling of 842299837 in words is "eight hundred forty-two million, two hundred ninety-nine thousand, eight hundred thirty-seven".