80436746 has 16 divisors (see below), whose sum is σ = 132959904. Its totient is φ = 36260784.

The previous prime is 80436743. The next prime is 80436757. The reversal of 80436746 is 64763408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80436743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34856 + ... + 37091.

It is an arithmetic number, because the mean of its divisors is an integer number (8309994).

Almost surely, 2^80436746 is an apocalyptic number.

80436746 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80436746 is a deficient number, since it is larger than the sum of its proper divisors (52523158).

80436746 is a wasteful number, since it uses less digits than its factorization.

80436746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72005.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 80436746 is about 8968.6535221292. The cubic root of 80436746 is about 431.6696326791.

The spelling of 80436746 in words is "eighty million, four hundred thirty-six thousand, seven hundred forty-six".