78414533 has 2 divisors, whose sum is σ = 78414534. Its totient is φ = 78414532.

The previous prime is 78414529. The next prime is 78414559. The reversal of 78414533 is 33541487.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76335169 + 2079364 = 8737^2 + 1442^2 .

It is a cyclic number.

It is not a de Polignac number, because 78414533 - 2² = 78414529 is a prime.

It is a super-2 number, since 2×78414533² = 12297677971216178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78414493 and 78414502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78414233) 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, 39207266 + 39207267.

It is an arithmetic number, because the mean of its divisors is an integer number (39207267).

Almost surely, 2^78414533 is an apocalyptic number.

It is an amenable number.

78414533 is a deficient number, since it is larger than the sum of its proper divisors (1).

78414533 is an equidigital number, since it uses as much as digits as its factorization.

78414533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 78414533 is about 8855.1980779653. The cubic root of 78414533 is about 428.0214363881.

The spelling of 78414533 in words is "seventy-eight million, four hundred fourteen thousand, five hundred thirty-three".