80683965 has 16 divisors (see below), whose sum is σ = 143438400. Its totient is φ = 43031376.

The previous prime is 80683963. The next prime is 80683973. The reversal of 80683965 is 56938608.

It is not a de Polignac number, because 80683965 - 2¹ = 80683963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80683965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80683961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298695 + ... + 298964.

It is an arithmetic number, because the mean of its divisors is an integer number (8964900).

Almost surely, 2^80683965 is an apocalyptic number.

It is an amenable number.

80683965 is a deficient number, since it is larger than the sum of its proper divisors (62754435).

80683965 is a wasteful number, since it uses less digits than its factorization.

80683965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597673 (or 597667 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 80683965 is about 8982.4253406304. The cubic root of 80683965 is about 432.1114199488. Note that the first 3 decimals are identical.

The spelling of 80683965 in words is "eighty million, six hundred eighty-three thousand, nine hundred sixty-five".