80276381 has 2 divisors, whose sum is σ = 80276382. Its totient is φ = 80276380.

The previous prime is 80276353. The next prime is 80276393. The reversal of 80276381 is 18367208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62552281 + 17724100 = 7909^2 + 4210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80276381 is a prime.

It is a super-2 number, since 2×80276381² = 12888594692914322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80276351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40138190 + 40138191.

It is an arithmetic number, because the mean of its divisors is an integer number (40138191).

Almost surely, 2^80276381 is an apocalyptic number.

It is an amenable number.

80276381 is a deficient number, since it is larger than the sum of its proper divisors (1).

80276381 is an equidigital number, since it uses as much as digits as its factorization.

80276381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 80276381 is about 8959.7087564273. The cubic root of 80276381 is about 431.3825716900.

The spelling of 80276381 in words is "eighty million, two hundred seventy-six thousand, three hundred eighty-one".