8819969 has 4 divisors (see below), whose sum is σ = 8969520. Its totient is φ = 8670420.

The previous prime is 8819959. The next prime is 8819977. The reversal of 8819969 is 9699188.

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 a de Polignac number, because none of the positive numbers 2^k-8819969 is a prime.

It is a super-2 number, since 2×8819969² = 155583706321922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8819959) 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, 74687 + ... + 74804.

It is an arithmetic number, because the mean of its divisors is an integer number (2242380).

Almost surely, 2^8819969 is an apocalyptic number.

It is an amenable number.

8819969 is a deficient number, since it is larger than the sum of its proper divisors (149551).

8819969 is a wasteful number, since it uses less digits than its factorization.

8819969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149550.

The product of its digits is 279936, while the sum is 50.

The square root of 8819969 is about 2969.8432618574. The cubic root of 8819969 is about 206.6120687662.

The spelling of 8819969 in words is "eight million, eight hundred nineteen thousand, nine hundred sixty-nine".