8791478 has 4 divisors (see below), whose sum is σ = 13187220. Its totient is φ = 4395738.

The previous prime is 8791477. The next prime is 8791487. The reversal of 8791478 is 8741978.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791477) 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 as a sum of consecutive naturals, namely, 2197868 + ... + 2197871.

It is an arithmetic number, because the mean of its divisors is an integer number (3296805).

Almost surely, 2^8791478 is an apocalyptic number.

8791478 is a deficient number, since it is larger than the sum of its proper divisors (4395742).

8791478 is a wasteful number, since it uses less digits than its factorization.

8791478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395741.

The product of its digits is 112896, while the sum is 44.

The square root of 8791478 is about 2965.0426641113. The cubic root of 8791478 is about 206.3893569367.

The spelling of 8791478 in words is "eight million, seven hundred ninety-one thousand, four hundred seventy-eight".