84705077 has 4 divisors (see below), whose sum is σ = 86303340. Its totient is φ = 83106816.

The previous prime is 84705073. The next prime is 84705079. The reversal of 84705077 is 77050748.

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 74200996 + 10504081 = 8614^2 + 3241^2 .

It is a cyclic number.

It is not a de Polignac number, because 84705077 - 2² = 84705073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84705077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84705073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799052 + ... + 799157.

It is an arithmetic number, because the mean of its divisors is an integer number (21575835).

Almost surely, 2^84705077 is an apocalyptic number.

It is an amenable number.

84705077 is a deficient number, since it is larger than the sum of its proper divisors (1598263).

84705077 is a wasteful number, since it uses less digits than its factorization.

84705077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598262.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 84705077 is about 9203.5361139075. The cubic root of 84705077 is about 439.1738578677.

The spelling of 84705077 in words is "eighty-four million, seven hundred five thousand, seventy-seven".