84530077 has 4 divisors (see below), whose sum is σ = 84997276. Its totient is φ = 84062880.

The previous prime is 84530063. The next prime is 84530093. The reversal of 84530077 is 77003548.

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 972196 + 83557881 = 986^2 + 9141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84530077 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 (84530777) 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, 233328 + ... + 233689.

It is an arithmetic number, because the mean of its divisors is an integer number (21249319).

Almost surely, 2^84530077 is an apocalyptic number.

It is an amenable number.

84530077 is a deficient number, since it is larger than the sum of its proper divisors (467199).

84530077 is a wasteful number, since it uses less digits than its factorization.

84530077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467198.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 84530077 is about 9194.0239830011. The cubic root of 84530077 is about 438.8712061407.

The spelling of 84530077 in words is "eighty-four million, five hundred thirty thousand, seventy-seven".