80443477 has 8 divisors (see below), whose sum is σ = 83318040. Its totient is φ = 77575680.

The previous prime is 80443469. The next prime is 80443487. The reversal of 80443477 is 77434408.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 80174116 = 519^2 + 8954^2 .

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 80443477 - 2³ = 80443469 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 (80443427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42013 + ... + 43885.

It is an arithmetic number, because the mean of its divisors is an integer number (10414755).

Almost surely, 2^80443477 is an apocalyptic number.

It is an amenable number.

80443477 is a deficient number, since it is larger than the sum of its proper divisors (2874563).

80443477 is a wasteful number, since it uses less digits than its factorization.

80443477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 80443477 is about 8969.0287657026. The cubic root of 80443477 is about 431.6816731431.

The spelling of 80443477 in words is "eighty million, four hundred forty-three thousand, four hundred seventy-seven".