78383411 has 2 divisors, whose sum is σ = 78383412. Its totient is φ = 78383410.

The previous prime is 78383381. The next prime is 78383429. The reversal of 78383411 is 11438387.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78383411 - 2¹⁰ = 78382387 is a prime.

It is a super-2 number, since 2×78383411² = 12287918239989842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78383441) by changing a digit.

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, 39191705 + 39191706.

It is an arithmetic number, because the mean of its divisors is an integer number (39191706).

Almost surely, 2^78383411 is an apocalyptic number.

78383411 is a deficient number, since it is larger than the sum of its proper divisors (1).

78383411 is an equidigital number, since it uses as much as digits as its factorization.

78383411 is an odious number, because the sum of its binary digits is odd.

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

The square root of 78383411 is about 8853.4406306249. The cubic root of 78383411 is about 427.9648029839.

The spelling of 78383411 in words is "seventy-eight million, three hundred eighty-three thousand, four hundred eleven".