869140801 has 2 divisors, whose sum is σ = 869140802. Its totient is φ = 869140800.

The previous prime is 869140787. The next prime is 869140819. The reversal of 869140801 is 108041968.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849780801 + 19360000 = 29151^2 + 4400^2 .

It is a cyclic number.

It is not a de Polignac number, because 869140801 - 2⁹ = 869140289 is a prime.

It is not a weakly prime, because it can be changed into another prime (869140001) 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, 434570400 + 434570401.

It is an arithmetic number, because the mean of its divisors is an integer number (434570401).

Almost surely, 2^869140801 is an apocalyptic number.

It is an amenable number.

869140801 is a deficient number, since it is larger than the sum of its proper divisors (1).

869140801 is an equidigital number, since it uses as much as digits as its factorization.

869140801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 869140801 is about 29481.1940226308. The cubic root of 869140801 is about 954.3259046032.

The spelling of 869140801 in words is "eight hundred sixty-nine million, one hundred forty thousand, eight hundred one".