8978465 has 16 divisors (see below), whose sum is σ = 11629008. Its totient is φ = 6629376.

The previous prime is 8978449. The next prime is 8978471. The reversal of 8978465 is 5648798.

8978465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 844561 + 8133904 = 919^2 + 2852^2 .

It is a cyclic number.

It is not a de Polignac number, because 8978465 - 2⁴ = 8978449 is a prime.

It is a super-2 number, since 2×8978465² = 161225667512450, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8³ + 9⁷ + 7 + 8³ + 4¹¹ + 6² + 5³ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3509 + ... + 5501.

It is an arithmetic number, because the mean of its divisors is an integer number (726813).

Almost surely, 2^8978465 is an apocalyptic number.

8978465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8978465 is a deficient number, since it is larger than the sum of its proper divisors (2650543).

8978465 is a wasteful number, since it uses less digits than its factorization.

8978465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068.

The product of its digits is 483840, while the sum is 47.

The square root of 8978465 is about 2996.4086837413. The cubic root of 8978465 is about 207.8423438587.

The spelling of 8978465 in words is "eight million, nine hundred seventy-eight thousand, four hundred sixty-five".