80965603 has 4 divisors (see below), whose sum is σ = 82848568. Its totient is φ = 79082640.

The previous prime is 80965601. The next prime is 80965627. The reversal of 80965603 is 30656908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80965603 - 2¹ = 80965601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80965601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941418 + ... + 941503.

It is an arithmetic number, because the mean of its divisors is an integer number (20712142).

Almost surely, 2^80965603 is an apocalyptic number.

80965603 is a deficient number, since it is larger than the sum of its proper divisors (1882965).

80965603 is a wasteful number, since it uses less digits than its factorization.

80965603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882964.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 80965603 is about 8998.0888526398. The cubic root of 80965603 is about 432.6136166696.

The spelling of 80965603 in words is "eighty million, nine hundred sixty-five thousand, six hundred three".