84538765 has 16 divisors (see below), whose sum is σ = 103062960. Its totient is φ = 66562560.

The previous prime is 84538757. The next prime is 84538787. The reversal of 84538765 is 56783548.

It can be written as a sum of positive squares in 8 ways, for example, as 248004 + 84290761 = 498^2 + 9181^2 .

It is not a de Polignac number, because 84538765 - 2³ = 84538757 is a prime.

Its product of digits (806400) is a multiple of the sum of its prime divisors (1152).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98217 + ... + 99073.

It is an arithmetic number, because the mean of its divisors is an integer number (6441435).

Almost surely, 2^84538765 is an apocalyptic number.

It is an amenable number.

84538765 is a deficient number, since it is larger than the sum of its proper divisors (18524195).

84538765 is a wasteful number, since it uses less digits than its factorization.

84538765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 806400, while the sum is 46.

The square root of 84538765 is about 9194.4964516824. The cubic root of 84538765 is about 438.8862413509.

The spelling of 84538765 in words is "eighty-four million, five hundred thirty-eight thousand, seven hundred sixty-five".