84755641 has 8 divisors (see below), whose sum is σ = 87556104. Its totient is φ = 81982080.

The previous prime is 84755579. The next prime is 84755669. The reversal of 84755641 is 14655748.

It can be written as a sum of positive squares in 4 ways, for example, as 74649600 + 10106041 = 8640^2 + 3179^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84755641 - 2⁷ = 84755513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84755594 and 84755603.

It is not an unprimeable number, because it can be changed into a prime (84755681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (10944513).

Almost surely, 2^84755641 is an apocalyptic number.

It is an amenable number.

84755641 is a deficient number, since it is larger than the sum of its proper divisors (2800463).

84755641 is a wasteful number, since it uses less digits than its factorization.

84755641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13451.

The product of its digits is 134400, while the sum is 40.

The square root of 84755641 is about 9206.2826917274. The cubic root of 84755641 is about 439.2612275609.

The spelling of 84755641 in words is "eighty-four million, seven hundred fifty-five thousand, six hundred forty-one".