84577723 has 4 divisors (see below), whose sum is σ = 84659400. Its totient is φ = 84496048.

The previous prime is 84577699. The next prime is 84577733. The reversal of 84577723 is 32777548.

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

It is a cyclic number.

It is not a de Polignac number, because 84577723 - 2²¹ = 82480571 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 84577723.

It is not an unprimeable number, because it can be changed into a prime (84577733) 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, 39265 + ... + 41362.

It is an arithmetic number, because the mean of its divisors is an integer number (21164850).

Almost surely, 2^84577723 is an apocalyptic number.

84577723 is a deficient number, since it is larger than the sum of its proper divisors (81677).

84577723 is a wasteful number, since it uses less digits than its factorization.

84577723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81676.

The product of its digits is 329280, while the sum is 43.

The square root of 84577723 is about 9196.6147576160. The cubic root of 84577723 is about 438.9536483147.

The spelling of 84577723 in words is "eighty-four million, five hundred seventy-seven thousand, seven hundred twenty-three".