84649565 has 48 divisors (see below), whose sum is σ = 137241216. Its totient is φ = 48672000.

The previous prime is 84649553. The next prime is 84649567. The reversal of 84649565 is 56594648.

It is not a de Polignac number, because 84649565 - 2⁴ = 84649549 is a prime.

Its product of digits (1036800) is a multiple of the sum of its prime factors (1350).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84649567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64415 + ... + 65715.

It is an arithmetic number, because the mean of its divisors is an integer number (2859192).

Almost surely, 2^84649565 is an apocalyptic number.

It is an amenable number.

84649565 is a deficient number, since it is larger than the sum of its proper divisors (52591651).

84649565 is a wasteful number, since it uses less digits than its factorization.

84649565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1337 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 84649565 is about 9200.5198222709. The cubic root of 84649565 is about 439.0778984607.

The spelling of 84649565 in words is "eighty-four million, six hundred forty-nine thousand, five hundred sixty-five".