80602981 has 4 divisors (see below), whose sum is σ = 80622432. Its totient is φ = 80583532.

The previous prime is 80602937. The next prime is 80603009. The reversal of 80602981 is 18920608.

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 a cyclic number.

It is not a de Polignac number, because 80602981 - 2⁹ = 80602469 is a prime.

It is a super-2 number, since 2×80602981² = 12993681092172722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80602901) 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, 745 + ... + 12718.

It is an arithmetic number, because the mean of its divisors is an integer number (20155608).

Almost surely, 2^80602981 is an apocalyptic number.

It is an amenable number.

80602981 is a deficient number, since it is larger than the sum of its proper divisors (19451).

80602981 is a wasteful number, since it uses less digits than its factorization.

80602981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19450.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 80602981 is about 8977.9162949985. The cubic root of 80602981 is about 431.9667987887.

The spelling of 80602981 in words is "eighty million, six hundred two thousand, nine hundred eighty-one".