80500965 has 16 divisors (see below), whose sum is σ = 129625728. Its totient is φ = 42659136.

The previous prime is 80500963. The next prime is 80500991. The reversal of 80500965 is 56900508.

It is not a de Polignac number, because 80500965 - 2¹ = 80500963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80500963) 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 15 ways as a sum of consecutive naturals, for example, 14737 + ... + 19446.

It is an arithmetic number, because the mean of its divisors is an integer number (8101608).

Almost surely, 2^80500965 is an apocalyptic number.

It is an amenable number.

80500965 is a deficient number, since it is larger than the sum of its proper divisors (49124763).

80500965 is a wasteful number, since it uses less digits than its factorization.

80500965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34348.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 80500965 is about 8972.2329996495. The cubic root of 80500965 is about 431.7844807611.

The spelling of 80500965 in words is "eighty million, five hundred thousand, nine hundred sixty-five".