80897155 has 8 divisors (see below), whose sum is σ = 102186000. Its totient is φ = 61311456.

The previous prime is 80897137. The next prime is 80897183. The reversal of 80897155 is 55179808.

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 80897155 - 2⁹ = 80896643 is a prime.

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, 425680 + ... + 425869.

It is an arithmetic number, because the mean of its divisors is an integer number (12773250).

Almost surely, 2^80897155 is an apocalyptic number.

80897155 is a deficient number, since it is larger than the sum of its proper divisors (21288845).

80897155 is a wasteful number, since it uses less digits than its factorization.

80897155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851573.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 80897155 is about 8994.2845741059. The cubic root of 80897155 is about 432.4916723535.

The spelling of 80897155 in words is "eighty million, eight hundred ninety-seven thousand, one hundred fifty-five".