80602987 has 4 divisors (see below), whose sum is σ = 80621136. Its totient is φ = 80584840.

The previous prime is 80602937. The next prime is 80603009. The reversal of 80602987 is 78920608.

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 80602987 - 2¹¹ = 80600939 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80602927) 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, 2562 + ... + 12952.

It is an arithmetic number, because the mean of its divisors is an integer number (20155284).

Almost surely, 2^80602987 is an apocalyptic number.

80602987 is a deficient number, since it is larger than the sum of its proper divisors (18149).

80602987 is a wasteful number, since it uses less digits than its factorization.

80602987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 80602987 is about 8977.9166291518. The cubic root of 80602987 is about 431.9668095071.

The spelling of 80602987 in words is "eighty million, six hundred two thousand, nine hundred eighty-seven".