8020465 has 4 divisors (see below), whose sum is σ = 9624564. Its totient is φ = 6416368.

The previous prime is 8020457. The next prime is 8020499. The reversal of 8020465 is 5640208.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5841889 + 2178576 = 2417^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 8020465 - 2³ = 8020457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802042 + ... + 802051.

It is an arithmetic number, because the mean of its divisors is an integer number (2406141).

Almost surely, 2^8020465 is an apocalyptic number.

It is an amenable number.

8020465 is a deficient number, since it is larger than the sum of its proper divisors (1604099).

8020465 is a wasteful number, since it uses less digits than its factorization.

8020465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604098.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8020465 is about 2832.0425491154. The cubic root of 8020465 is about 200.1703964507.

The spelling of 8020465 in words is "eight million, twenty thousand, four hundred sixty-five".