80820801 has 8 divisors (see below), whose sum is σ = 119734560. Its totient is φ = 53880516.

The previous prime is 80820793. The next prime is 80820809. The reversal of 80820801 is 10802808.

It is an interprime number because it is at equal distance from previous prime (80820793) and next prime (80820809).

It is not a de Polignac number, because 80820801 - 2³ = 80820793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2993363 = 80820801 / (8 + 0 + 8 + 2 + 0 + 8 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (80820809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496655 + ... + 1496708.

It is an arithmetic number, because the mean of its divisors is an integer number (14966820).

Almost surely, 2^80820801 is an apocalyptic number.

It is an amenable number.

80820801 is a deficient number, since it is larger than the sum of its proper divisors (38913759).

80820801 is a wasteful number, since it uses less digits than its factorization.

80820801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993372 (or 2993366 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 80820801 is about 8990.0389876796. The cubic root of 80820801 is about 432.3555618235.

It can be divided in two parts, 808 and 20801, that added together give a square (21609 = 147²).

The spelling of 80820801 in words is "eighty million, eight hundred twenty thousand, eight hundred one".