80271746 has 4 divisors (see below), whose sum is σ = 120407622. Its totient is φ = 40135872.

The previous prime is 80271743. The next prime is 80271757. The reversal of 80271746 is 64717208.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 366025 = 8939^2 + 605^2 .

It is not an unprimeable number, because it can be changed into a prime (80271743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20067935 + ... + 20067938.

Almost surely, 2^80271746 is an apocalyptic number.

80271746 is a deficient number, since it is larger than the sum of its proper divisors (40135876).

80271746 is a wasteful number, since it uses less digits than its factorization.

80271746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40135875.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 80271746 is about 8959.4500947324. The cubic root of 80271746 is about 431.3742691371.

The spelling of 80271746 in words is "eighty million, two hundred seventy-one thousand, seven hundred forty-six".