8878661 has 4 divisors (see below), whose sum is σ = 9685824. Its totient is φ = 8071500.

The previous prime is 8878657. The next prime is 8878663. The reversal of 8878661 is 1668788.

8878661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8878661 - 2² = 8878657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8878663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403565 + ... + 403586.

It is an arithmetic number, because the mean of its divisors is an integer number (2421456).

Almost surely, 2^8878661 is an apocalyptic number.

It is an amenable number.

8878661 is a deficient number, since it is larger than the sum of its proper divisors (807163).

8878661 is a wasteful number, since it uses less digits than its factorization.

8878661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807162.

The product of its digits is 129024, while the sum is 44.

The square root of 8878661 is about 2979.7082071908. The cubic root of 8878661 is about 207.0693521656.

The spelling of 8878661 in words is "eight million, eight hundred seventy-eight thousand, six hundred sixty-one".