8861378 has 4 divisors (see below), whose sum is σ = 13292070. Its totient is φ = 4430688.

The previous prime is 8861309. The next prime is 8861383. The reversal of 8861378 is 8731688.

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

It can be written as a sum of positive squares in only one way, i.e., 6115729 + 2745649 = 2473^2 + 1657^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2215343 + ... + 2215346.

Almost surely, 2^8861378 is an apocalyptic number.

8861378 is a deficient number, since it is larger than the sum of its proper divisors (4430692).

8861378 is a wasteful number, since it uses less digits than its factorization.

8861378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430691.

The product of its digits is 64512, while the sum is 41.

The square root of 8861378 is about 2976.8066783048. The cubic root of 8861378 is about 206.9349060574.

The spelling of 8861378 in words is "eight million, eight hundred sixty-one thousand, three hundred seventy-eight".