82207801 has 8 divisors (see below), whose sum is σ = 93739464. Its totient is φ = 71420160.

The previous prime is 82207793. The next prime is 82207817. The reversal of 82207801 is 10870228.

It can be written as a sum of positive squares in 4 ways, for example, as 20034576 + 62173225 = 4476^2 + 7885^2 .

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 82207801 - 2³ = 82207793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82207801.

It is not an unprimeable number, because it can be changed into a prime (82207891) 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 in 7 ways as a sum of consecutive naturals, for example, 185770 + ... + 186211.

It is an arithmetic number, because the mean of its divisors is an integer number (11717433).

Almost surely, 2^82207801 is an apocalyptic number.

It is an amenable number.

82207801 is a deficient number, since it is larger than the sum of its proper divisors (11531663).

82207801 is a wasteful number, since it uses less digits than its factorization.

82207801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372011.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 82207801 is about 9066.8517689438. The cubic root of 82207801 is about 434.8148258398.

The spelling of 82207801 in words is "eighty-two million, two hundred seven thousand, eight hundred one".