80892543 has 4 divisors (see below), whose sum is σ = 107856728. Its totient is φ = 53928360.

The previous prime is 80892529. The next prime is 80892569. The reversal of 80892543 is 34529808.

It is a happy number.

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

It is not a de Polignac number, because 80892543 - 2²⁴ = 64115327 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 (80892583) 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, 13482088 + ... + 13482093.

It is an arithmetic number, because the mean of its divisors is an integer number (26964182).

Almost surely, 2^80892543 is an apocalyptic number.

80892543 is a deficient number, since it is larger than the sum of its proper divisors (26964185).

80892543 is a wasteful number, since it uses less digits than its factorization.

80892543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26964184.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 80892543 is about 8994.0281854128. The cubic root of 80892543 is about 432.4834533191.

The spelling of 80892543 in words is "eighty million, eight hundred ninety-two thousand, five hundred forty-three".