80923209 has 8 divisors (see below), whose sum is σ = 109933632. Its totient is φ = 52930800.

The previous prime is 80923207. The next prime is 80923229. The reversal of 80923209 is 90232908.

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

It is not a de Polignac number, because 80923209 - 2¹ = 80923207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80923209.

It is not an unprimeable number, because it can be changed into a prime (80923207) 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, 254317 + ... + 254634.

It is an arithmetic number, because the mean of its divisors is an integer number (13741704).

Almost surely, 2^80923209 is an apocalyptic number.

It is an amenable number.

80923209 is a deficient number, since it is larger than the sum of its proper divisors (29010423).

80923209 is a wasteful number, since it uses less digits than its factorization.

80923209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509007.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 80923209 is about 8995.7328217328. The cubic root of 80923209 is about 432.5380972600.

The spelling of 80923209 in words is "eighty million, nine hundred twenty-three thousand, two hundred nine".