80949713 has 4 divisors (see below), whose sum is σ = 87176628. Its totient is φ = 74722800.

The previous prime is 80949679. The next prime is 80949721. The reversal of 80949713 is 31794908.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16581184 + 64368529 = 4072^2 + 8023^2 .

It is a cyclic number.

It is not a de Polignac number, because 80949713 - 2¹² = 80945617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80949793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113438 + ... + 3113463.

It is an arithmetic number, because the mean of its divisors is an integer number (21794157).

Almost surely, 2^80949713 is an apocalyptic number.

It is an amenable number.

80949713 is a deficient number, since it is larger than the sum of its proper divisors (6226915).

80949713 is a wasteful number, since it uses less digits than its factorization.

80949713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226914.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 80949713 is about 8997.2058440385. The cubic root of 80949713 is about 432.5853137859.

The spelling of 80949713 in words is "eighty million, nine hundred forty-nine thousand, seven hundred thirteen".