80877418 has 4 divisors (see below), whose sum is σ = 121316130. Its totient is φ = 40438708.

The previous prime is 80877413. The next prime is 80877437. The reversal of 80877418 is 81477808.

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

It can be written as a sum of positive squares in only one way, i.e., 58721569 + 22155849 = 7663^2 + 4707^2 .

It is not an unprimeable number, because it can be changed into a prime (80877413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20219353 + ... + 20219356.

Almost surely, 2^80877418 is an apocalyptic number.

80877418 is a deficient number, since it is larger than the sum of its proper divisors (40438712).

80877418 is a wasteful number, since it uses less digits than its factorization.

80877418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40438711.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 80877418 is about 8993.1873104034. The cubic root of 80877418 is about 432.4564968996.

The spelling of 80877418 in words is "eighty million, eight hundred seventy-seven thousand, four hundred eighteen".