80436741 has 32 divisors (see below), whose sum is σ = 141585408. Its totient is φ = 39325440.

The previous prime is 80436737. The next prime is 80436743. The reversal of 80436741 is 14763408.

It is not a de Polignac number, because 80436741 - 2² = 80436737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 6315 + ... + 14168.

It is an arithmetic number, because the mean of its divisors is an integer number (4424544).

Almost surely, 2^80436741 is an apocalyptic number.

It is an amenable number.

80436741 is a deficient number, since it is larger than the sum of its proper divisors (61148667).

80436741 is a wasteful number, since it uses less digits than its factorization.

80436741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20521.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 80436741 is about 8968.6532433805. The cubic root of 80436741 is about 431.6696237348.

It can be divided in two parts, 804367 and 41, that added together give a palindrome (804408).

The spelling of 80436741 in words is "eighty million, four hundred thirty-six thousand, seven hundred forty-one".