80669613 has 8 divisors (see below), whose sum is σ = 107618368. Its totient is φ = 53750304.

The previous prime is 80669593. The next prime is 80669621. The reversal of 80669613 is 31696608.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80669613 - 2¹² = 80665517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80669663) 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 7 ways as a sum of consecutive naturals, for example, 120 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (13452296).

Almost surely, 2^80669613 is an apocalyptic number.

It is an amenable number.

80669613 is a deficient number, since it is larger than the sum of its proper divisors (26948755).

80669613 is a wasteful number, since it uses less digits than its factorization.

80669613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 80669613 is about 8981.6264117364. The cubic root of 80669613 is about 432.0857972167.

The spelling of 80669613 in words is "eighty million, six hundred sixty-nine thousand, six hundred thirteen".