83278411 has 2 divisors, whose sum is σ = 83278412. Its totient is φ = 83278410.

The previous prime is 83278373. The next prime is 83278417. The reversal of 83278411 is 11487238.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83278411 - 2⁹ = 83277899 is a prime.

It is not a weakly prime, because it can be changed into another prime (83278417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41639205 + 41639206.

It is an arithmetic number, because the mean of its divisors is an integer number (41639206).

Almost surely, 2^83278411 is an apocalyptic number.

83278411 is a deficient number, since it is larger than the sum of its proper divisors (1).

83278411 is an equidigital number, since it uses as much as digits as its factorization.

83278411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 34.

The square root of 83278411 is about 9125.7005758462. The cubic root of 83278411 is about 436.6942531245.

The spelling of 83278411 in words is "eighty-three million, two hundred seventy-eight thousand, four hundred eleven".