840088801 has 2 divisors, whose sum is σ = 840088802. Its totient is φ = 840088800.

The previous prime is 840088793. The next prime is 840088829. The reversal of 840088801 is 108880048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792478801 + 47610000 = 28151^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 840088801 - 2³ = 840088793 is a prime.

It is not a weakly prime, because it can be changed into another prime (840088841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420044400 + 420044401.

It is an arithmetic number, because the mean of its divisors is an integer number (420044401).

Almost surely, 2^840088801 is an apocalyptic number.

It is an amenable number.

840088801 is a deficient number, since it is larger than the sum of its proper divisors (1).

840088801 is an equidigital number, since it uses as much as digits as its factorization.

840088801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 37.

The square root of 840088801 is about 28984.2854146864. The cubic root of 840088801 is about 943.5720437761.

It can be divided in two parts, 840088 and 801, that added together give a square (840889 = 917²).

The spelling of 840088801 in words is "eight hundred forty million, eighty-eight thousand, eight hundred one".