8378969 has 4 divisors (see below), whose sum is σ = 8743296. Its totient is φ = 8014644.

The previous prime is 8378893. The next prime is 8378987. The reversal of 8378969 is 9698738.

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 8378969 - 2¹⁶ = 8313433 is a prime.

It is a super-2 number, since 2×8378969² = 140414243005922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8378989) 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, 182129 + ... + 182174.

It is an arithmetic number, because the mean of its divisors is an integer number (2185824).

Almost surely, 2^8378969 is an apocalyptic number.

It is an amenable number.

8378969 is a deficient number, since it is larger than the sum of its proper divisors (364327).

8378969 is a wasteful number, since it uses less digits than its factorization.

8378969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364326.

The product of its digits is 653184, while the sum is 50.

The square root of 8378969 is about 2894.6448832283. The cubic root of 8378969 is about 203.1094801239.

The spelling of 8378969 in words is "eight million, three hundred seventy-eight thousand, nine hundred sixty-nine".