80674709 has 8 divisors (see below), whose sum is σ = 82339800. Its totient is φ = 79024896.

The previous prime is 80674691. The next prime is 80674739. The reversal of 80674709 is 90747608.

It can be written as a sum of positive squares in 4 ways, for example, as 11035684 + 69639025 = 3322^2 + 8345^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80674709 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 (80674739) 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, 7169 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (10292475).

Almost surely, 2^80674709 is an apocalyptic number.

It is an amenable number.

80674709 is a deficient number, since it is larger than the sum of its proper divisors (1665091).

80674709 is a wasteful number, since it uses less digits than its factorization.

80674709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 80674709 is about 8981.9100975238. The cubic root of 80674709 is about 432.0948954912.

The spelling of 80674709 in words is "eighty million, six hundred seventy-four thousand, seven hundred nine".