8879865 has 32 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 4399104.

The previous prime is 8879861. The next prime is 8879869. The reversal of 8879865 is 5689788.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8879861) and next prime (8879869).

It is not a de Polignac number, because 8879865 - 2² = 8879861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8879861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24556 + ... + 24914.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^8879865 is an apocalyptic number.

8879865 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8879865 is a deficient number, since it is larger than the sum of its proper divisors (6361095).

8879865 is a wasteful number, since it uses less digits than its factorization.

8879865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its digits is 967680, while the sum is 51.

The square root of 8879865 is about 2979.9102335473. The cubic root of 8879865 is about 207.0787116937.

The spelling of 8879865 in words is "eight million, eight hundred seventy-nine thousand, eight hundred sixty-five".