8978866 has 16 divisors (see below), whose sum is σ = 14586264. Its totient is φ = 4120704.

The previous prime is 8978863. The next prime is 8978869. The reversal of 8978866 is 6688798.

It is an interprime number because it is at equal distance from previous prime (8978863) and next prime (8978869).

It can be written as a sum of positive squares in 4 ways, for example, as 6325225 + 2653641 = 2515^2 + 1629^2 .

It is not an unprimeable number, because it can be changed into a prime (8978863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246 + ... + 5998.

Almost surely, 2^8978866 is an apocalyptic number.

8978866 is a deficient number, since it is larger than the sum of its proper divisors (5607398).

8978866 is a wasteful number, since it uses less digits than its factorization.

8978866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its digits is 1161216, while the sum is 52.

The square root of 8978866 is about 2996.4755964299. The cubic root of 8978866 is about 207.8454380602.

The spelling of 8978866 in words is "eight million, nine hundred seventy-eight thousand, eight hundred sixty-six".