80228965 has 8 divisors (see below), whose sum is σ = 96445080. Its totient is φ = 64069632.

The previous prime is 80228959. The next prime is 80228989. The reversal of 80228965 is 56982208.

It can be written as a sum of positive squares in 4 ways, for example, as 39664804 + 40564161 = 6298^2 + 6369^2 .

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 80228965 - 2³ = 80228957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11020 + ... + 16789.

It is an arithmetic number, because the mean of its divisors is an integer number (12055635).

Almost surely, 2^80228965 is an apocalyptic number.

It is an amenable number.

80228965 is a deficient number, since it is larger than the sum of its proper divisors (16216115).

80228965 is a wasteful number, since it uses less digits than its factorization.

80228965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28391.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 80228965 is about 8957.0622974277. The cubic root of 80228965 is about 431.2976215702.

The spelling of 80228965 in words is "eighty million, two hundred twenty-eight thousand, nine hundred sixty-five".