84550765 has 8 divisors (see below), whose sum is σ = 109265688. Its totient is φ = 62437440.

The previous prime is 84550759. The next prime is 84550769. The reversal of 84550765 is 56705548.

It can be written as a sum of positive squares in 4 ways, for example, as 3928324 + 80622441 = 1982^2 + 8979^2 .

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

It is not a de Polignac number, because 84550765 - 2¹⁷ = 84419693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84550769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650326 + ... + 650455.

It is an arithmetic number, because the mean of its divisors is an integer number (13658211).

Almost surely, 2^84550765 is an apocalyptic number.

It is an amenable number.

84550765 is a deficient number, since it is larger than the sum of its proper divisors (24714923).

84550765 is a wasteful number, since it uses less digits than its factorization.

84550765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300799.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 84550765 is about 9195.1489928114. The cubic root of 84550765 is about 438.9070065218.

The spelling of 84550765 in words is "eighty-four million, five hundred fifty thousand, seven hundred sixty-five".