80993469 has 4 divisors (see below), whose sum is σ = 107991296. Its totient is φ = 53995644.

The previous prime is 80993461. The next prime is 80993503. The reversal of 80993469 is 96439908.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80993469 - 2³ = 80993461 is a prime.

It is a super-2 number, since 2×80993469² = 13119884041307922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80993461) 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 3 ways as a sum of consecutive naturals, for example, 13498909 + ... + 13498914.

It is an arithmetic number, because the mean of its divisors is an integer number (26997824).

Almost surely, 2^80993469 is an apocalyptic number.

It is an amenable number.

80993469 is a deficient number, since it is larger than the sum of its proper divisors (26997827).

80993469 is a wasteful number, since it uses less digits than its factorization.

80993469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26997826.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 80993469 is about 8999.6371593526. The cubic root of 80993469 is about 432.6632419748.

The spelling of 80993469 in words is "eighty million, nine hundred ninety-three thousand, four hundred sixty-nine".