8220977 has 8 divisors (see below), whose sum is σ = 8764800. Its totient is φ = 7688304.

The previous prime is 8220937. The next prime is 8221009. The reversal of 8220977 is 7790228.

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 8220977 - 2¹⁸ = 7958833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8220937) 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, 1238 + ... + 4239.

It is an arithmetic number, because the mean of its divisors is an integer number (1095600).

Almost surely, 2^8220977 is an apocalyptic number.

It is an amenable number.

8220977 is a deficient number, since it is larger than the sum of its proper divisors (543823).

8220977 is a wasteful number, since it uses less digits than its factorization.

8220977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 8220977 is about 2867.2246162448. The cubic root of 8220977 is about 201.8247753402.

The spelling of 8220977 in words is "eight million, two hundred twenty thousand, nine hundred seventy-seven".