80544961 has 4 divisors (see below), whose sum is σ = 92051392. Its totient is φ = 69038532.

The previous prime is 80544953. The next prime is 80544979. The reversal of 80544961 is 16944508.

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 a cyclic number.

It is not a de Polignac number, because 80544961 - 2³ = 80544953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80544961.

It is not an unprimeable number, because it can be changed into a prime (80544901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5753205 + ... + 5753218.

It is an arithmetic number, because the mean of its divisors is an integer number (23012848).

Almost surely, 2^80544961 is an apocalyptic number.

It is an amenable number.

80544961 is a deficient number, since it is larger than the sum of its proper divisors (11506431).

80544961 is a wasteful number, since it uses less digits than its factorization.

80544961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506430.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 80544961 is about 8974.6844512774. The cubic root of 80544961 is about 431.8631271488.

The spelling of 80544961 in words is "eighty million, five hundred forty-four thousand, nine hundred sixty-one".