80854547 has 4 divisors (see below), whose sum is σ = 80909160. Its totient is φ = 80799936.

The previous prime is 80854537. The next prime is 80854559. The reversal of 80854547 is 74545808.

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 80854547 - 2⁴ = 80854531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80854537) 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, 25022 + ... + 28067.

It is an arithmetic number, because the mean of its divisors is an integer number (20227290).

Almost surely, 2^80854547 is an apocalyptic number.

80854547 is a deficient number, since it is larger than the sum of its proper divisors (54613).

80854547 is a wasteful number, since it uses less digits than its factorization.

80854547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54612.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 80854547 is about 8991.9156468463. The cubic root of 80854547 is about 432.4157288449.

It can be divided in two parts, 808 and 54547, that added together give a palindrome (55355).

The spelling of 80854547 in words is "eighty million, eight hundred fifty-four thousand, five hundred forty-seven".