84740885 has 4 divisors (see below), whose sum is σ = 101689068. Its totient is φ = 67792704.

The previous prime is 84740879. The next prime is 84740899. The reversal of 84740885 is 58804748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50154724 + 34586161 = 7082^2 + 5881^2 .

It is a cyclic number.

It is not a de Polignac number, because 84740885 - 2²² = 80546581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8474084 + ... + 8474093.

It is an arithmetic number, because the mean of its divisors is an integer number (25422267).

Almost surely, 2^84740885 is an apocalyptic number.

It is an amenable number.

84740885 is a deficient number, since it is larger than the sum of its proper divisors (16948183).

84740885 is a wasteful number, since it uses less digits than its factorization.

84740885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16948182.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 84740885 is about 9205.4812476046. The cubic root of 84740885 is about 439.2357342140.

The spelling of 84740885 in words is "eighty-four million, seven hundred forty thousand, eight hundred eighty-five".