80573911 has 4 divisors (see below), whose sum is σ = 87898824. Its totient is φ = 73249000.

The previous prime is 80573891. The next prime is 80573957. The reversal of 80573911 is 11937508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80573911 - 2¹⁹ = 80049623 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 (80573971) 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, 3662440 + ... + 3662461.

It is an arithmetic number, because the mean of its divisors is an integer number (21974706).

Almost surely, 2^80573911 is an apocalyptic number.

80573911 is a deficient number, since it is larger than the sum of its proper divisors (7324913).

80573911 is a wasteful number, since it uses less digits than its factorization.

80573911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324912.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 80573911 is about 8976.2971764531. The cubic root of 80573911 is about 431.9148619802.

The spelling of 80573911 in words is "eighty million, five hundred seventy-three thousand, nine hundred eleven".