80699221 has 8 divisors (see below), whose sum is σ = 85593024. Its totient is φ = 75821760.

The previous prime is 80699209. The next prime is 80699291. The reversal of 80699221 is 12299608.

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 80699221 - 2⁷ = 80699093 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 (80699291) 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, 6966 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (10699128).

Almost surely, 2^80699221 is an apocalyptic number.

It is an amenable number.

80699221 is a deficient number, since it is larger than the sum of its proper divisors (4893803).

80699221 is a wasteful number, since it uses less digits than its factorization.

80699221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 80699221 is about 8983.2745143405. The cubic root of 80699221 is about 432.1386532673.

The spelling of 80699221 in words is "eighty million, six hundred ninety-nine thousand, two hundred twenty-one".