84890465 has 8 divisors (see below), whose sum is σ = 111129408. Its totient is φ = 61738480.

The previous prime is 84890419. The next prime is 84890501. The reversal of 84890465 is 56409848.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84890465 - 2⁸ = 84890209 is a prime.

It is a Duffinian number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 771677 + ... + 771786.

It is an arithmetic number, because the mean of its divisors is an integer number (13891176).

Almost surely, 2^84890465 is an apocalyptic number.

It is an amenable number.

84890465 is a deficient number, since it is larger than the sum of its proper divisors (26238943).

84890465 is a wasteful number, since it uses less digits than its factorization.

84890465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543479.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 84890465 is about 9213.6021728746. The cubic root of 84890465 is about 439.4940206432.

The spelling of 84890465 in words is "eighty-four million, eight hundred ninety thousand, four hundred sixty-five".