78327083 has 2 divisors, whose sum is σ = 78327084. Its totient is φ = 78327082.

The previous prime is 78327079. The next prime is 78327089. The reversal of 78327083 is 38072387.

It is a weak prime.

It is an emirp because it is prime and its reverse (38072387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78327083 - 2² = 78327079 is a prime.

It is a super-2 number, since 2×78327083² = 12270263862577778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78327089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39163541 + 39163542.

It is an arithmetic number, because the mean of its divisors is an integer number (39163542).

Almost surely, 2^78327083 is an apocalyptic number.

78327083 is a deficient number, since it is larger than the sum of its proper divisors (1).

78327083 is an equidigital number, since it uses as much as digits as its factorization.

78327083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 78327083 is about 8850.2589227660. The cubic root of 78327083 is about 427.8622635227.

The spelling of 78327083 in words is "seventy-eight million, three hundred twenty-seven thousand, eighty-three".