8942805 has 40 divisors (see below), whose sum is σ = 16308864. Its totient is φ = 4687200.

The previous prime is 8942803. The next prime is 8942821. The reversal of 8942805 is 5082498.

It is not a de Polignac number, because 8942805 - 2¹ = 8942803 is a prime.

It is a super-2 number, since 2×8942805² = 159947522536050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8942805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8942803) 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 39 ways as a sum of consecutive naturals, for example, 28600 + ... + 28910.

Almost surely, 2^8942805 is an apocalyptic number.

It is an amenable number.

8942805 is a deficient number, since it is larger than the sum of its proper divisors (7366059).

8942805 is a wasteful number, since it uses less digits than its factorization.

8942805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 8942805 is about 2990.4523069262. The cubic root of 8942805 is about 207.5668145024.

The spelling of 8942805 in words is "eight million, nine hundred forty-two thousand, eight hundred five".