80901669 has 8 divisors (see below), whose sum is σ = 107918080. Its totient is φ = 53909856.

The previous prime is 80901631. The next prime is 80901671. The reversal of 80901669 is 96610908.

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

It is not a de Polignac number, because 80901669 - 2⁹ = 80901157 is a prime.

It is a super-2 number, since 2×80901669² = 13090160093971122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80902669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3852 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (13489760).

Almost surely, 2^80901669 is an apocalyptic number.

It is an amenable number.

80901669 is a deficient number, since it is larger than the sum of its proper divisors (27016411).

80901669 is a wasteful number, since it uses less digits than its factorization.

80901669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 80901669 is about 8994.5355077402. The cubic root of 80901669 is about 432.4997164398.

The spelling of 80901669 in words is "eighty million, nine hundred one thousand, six hundred sixty-nine".