80477877 has 4 divisors (see below), whose sum is σ = 107303840. Its totient is φ = 53651916.

The previous prime is 80477867. The next prime is 80477899. The reversal of 80477877 is 77877408.

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 80477877 - 2¹⁰ = 80476853 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 (80477807) 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, 13412977 + ... + 13412982.

It is an arithmetic number, because the mean of its divisors is an integer number (26825960).

Almost surely, 2^80477877 is an apocalyptic number.

It is an amenable number.

80477877 is a deficient number, since it is larger than the sum of its proper divisors (26825963).

80477877 is a wasteful number, since it uses less digits than its factorization.

80477877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26825962.

The product of its (nonzero) digits is 614656, while the sum is 48.

The square root of 80477877 is about 8970.9462711578. The cubic root of 80477877 is about 431.7431976399.

The spelling of 80477877 in words is "eighty million, four hundred seventy-seven thousand, eight hundred seventy-seven".