842811407 has 2 divisors, whose sum is σ = 842811408. Its totient is φ = 842811406.

The previous prime is 842811391. The next prime is 842811433. The reversal of 842811407 is 704118248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 842811407 - 2⁴ = 842811391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842811467) 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 as a sum of consecutive naturals, namely, 421405703 + 421405704.

It is an arithmetic number, because the mean of its divisors is an integer number (421405704).

Almost surely, 2^842811407 is an apocalyptic number.

842811407 is a deficient number, since it is larger than the sum of its proper divisors (1).

842811407 is an equidigital number, since it uses as much as digits as its factorization.

842811407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 842811407 is about 29031.2143562752. The cubic root of 842811407 is about 944.5902713197.

The spelling of 842811407 in words is "eight hundred forty-two million, eight hundred eleven thousand, four hundred seven".