80602681 has 4 divisors (see below), whose sum is σ = 80964352. Its totient is φ = 80241012.

The previous prime is 80602663. The next prime is 80602699. The reversal of 80602681 is 18620608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (80602663) and next prime (80602699).

It is a cyclic number.

It is not a de Polignac number, because 80602681 - 2⁷ = 80602553 is a prime.

It is a super-2 number, since 2×80602681² = 12993584368775522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80602601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180501 + ... + 180946.

It is an arithmetic number, because the mean of its divisors is an integer number (20241088).

Almost surely, 2^80602681 is an apocalyptic number.

It is an amenable number.

80602681 is a deficient number, since it is larger than the sum of its proper divisors (361671).

80602681 is a wasteful number, since it uses less digits than its factorization.

80602681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361670.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 80602681 is about 8977.8995873200. The cubic root of 80602681 is about 431.9662628689.

The spelling of 80602681 in words is "eighty million, six hundred two thousand, six hundred eighty-one".