80727946 has 16 divisors (see below), whose sum is σ = 130864104. Its totient is φ = 37128384.

The previous prime is 80727943. The next prime is 80727947. The reversal of 80727946 is 64972708.

It can be written as a sum of positive squares in 4 ways, for example, as 53802225 + 26925721 = 7335^2 + 5189^2 .

It is not an unprimeable number, because it can be changed into a prime (80727943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320 + ... + 12916.

Almost surely, 2^80727946 is an apocalyptic number.

80727946 is a deficient number, since it is larger than the sum of its proper divisors (50136158).

80727946 is a wasteful number, since it uses less digits than its factorization.

80727946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 80727946 is about 8984.8731766230. The cubic root of 80727946 is about 432.1899206365.

The spelling of 80727946 in words is "eighty million, seven hundred twenty-seven thousand, nine hundred forty-six".