80740845 has 48 divisors (see below), whose sum is σ = 145971072. Its totient is φ = 41247360.

The previous prime is 80740831. The next prime is 80740853. The reversal of 80740845 is 54804708.

It is not a de Polignac number, because 80740845 - 2⁷ = 80740717 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 117874 + ... + 118556.

It is an arithmetic number, because the mean of its divisors is an integer number (3041064).

Almost surely, 2^80740845 is an apocalyptic number.

It is an amenable number.

80740845 is a deficient number, since it is larger than the sum of its proper divisors (65230227).

80740845 is a wasteful number, since it uses less digits than its factorization.

80740845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 80740845 is about 8985.5909655403. The cubic root of 80740845 is about 432.2129383612.

The spelling of 80740845 in words is "eighty million, seven hundred forty thousand, eight hundred forty-five".