80659673 has 8 divisors (see below), whose sum is σ = 81635400. Its totient is φ = 79688448.

The previous prime is 80659619. The next prime is 80659729. The reversal of 80659673 is 37695608.

It can be written as a sum of positive squares in 4 ways, for example, as 861184 + 79798489 = 928^2 + 8933^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80659673 - 2¹⁴ = 80643289 is a prime.

It is a super-3 number, since 3×80659673³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80659973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46343 + ... + 48051.

It is an arithmetic number, because the mean of its divisors is an integer number (10204425).

Almost surely, 2^80659673 is an apocalyptic number.

It is an amenable number.

80659673 is a deficient number, since it is larger than the sum of its proper divisors (975727).

80659673 is a wasteful number, since it uses less digits than its factorization.

80659673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 80659673 is about 8981.0730427939. The cubic root of 80659673 is about 432.0680494796.

The spelling of 80659673 in words is "eighty million, six hundred fifty-nine thousand, six hundred seventy-three".