84389465 has 4 divisors (see below), whose sum is σ = 101267364. Its totient is φ = 67511568.

The previous prime is 84389453. The next prime is 84389467. The reversal of 84389465 is 56498348.

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 27175369 + 57214096 = 5213^2 + 7564^2 .

It is a cyclic number.

It is not a de Polignac number, because 84389465 - 2⁶ = 84389401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84389467) 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, 8438942 + ... + 8438951.

It is an arithmetic number, because the mean of its divisors is an integer number (25316841).

Almost surely, 2^84389465 is an apocalyptic number.

It is an amenable number.

84389465 is a deficient number, since it is larger than the sum of its proper divisors (16877899).

84389465 is a wasteful number, since it uses less digits than its factorization.

84389465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16877898.

The product of its digits is 829440, while the sum is 47.

The square root of 84389465 is about 9186.3738765630. The cubic root of 84389465 is about 438.6277235466.

The spelling of 84389465 in words is "eighty-four million, three hundred eighty-nine thousand, four hundred sixty-five".