8102977 has 4 divisors (see below), whose sum is σ = 8382420. Its totient is φ = 7823536.

The previous prime is 8102971. The next prime is 8103019. The reversal of 8102977 is 7792018.

8102977 = T₇₃₃ + T₇₃₄ + ... + T₇₆₁.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 4198401 = 1976^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 8102977 - 2⁷ = 8102849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8102971) 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 3 ways as a sum of consecutive naturals, for example, 139678 + ... + 139735.

It is an arithmetic number, because the mean of its divisors is an integer number (2095605).

Almost surely, 2^8102977 is an apocalyptic number.

It is an amenable number.

8102977 is a deficient number, since it is larger than the sum of its proper divisors (279443).

8102977 is a wasteful number, since it uses less digits than its factorization.

8102977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279442.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 8102977 is about 2846.5728516938. The cubic root of 8102977 is about 200.8544857381.

The spelling of 8102977 in words is "eight million, one hundred two thousand, nine hundred seventy-seven".