80378 has 4 divisors (see below), whose sum is σ = 120570. Its totient is φ = 40188.

The previous prime is 80369. The next prime is 80387. The reversal of 80378 is 87308.

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

It is an interprime number because it is at equal distance from previous prime (80369) and next prime (80387).

It can be written as a sum of positive squares in only one way, i.e., 80089 + 289 = 283^2 + 17^2 .

It is an Ulam number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20093 + ... + 20096.

2⁸⁰³⁷⁸ is an apocalyptic number.

80378 is a deficient number, since it is larger than the sum of its proper divisors (40192).

80378 is a wasteful number, since it uses less digits than its factorization.

80378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40191.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 80378 is about 283.5101409121. The cubic root of 80378 is about 43.1564518862.

The spelling of 80378 in words is "eighty thousand, three hundred seventy-eight".