78462443 has 2 divisors, whose sum is σ = 78462444. Its totient is φ = 78462442.

The previous prime is 78462437. The next prime is 78462481. The reversal of 78462443 is 34426487.

It is an a-pointer prime, because the next prime (78462481) can be obtained adding 78462443 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (34426487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78462443 - 2⁸ = 78462187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78462397 and 78462406.

It is not a weakly prime, because it can be changed into another prime (78462493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39231221 + 39231222.

It is an arithmetic number, because the mean of its divisors is an integer number (39231222).

Almost surely, 2^78462443 is an apocalyptic number.

78462443 is a deficient number, since it is larger than the sum of its proper divisors (1).

78462443 is an equidigital number, since it uses as much as digits as its factorization.

78462443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 38.

The square root of 78462443 is about 8857.9028556425. The cubic root of 78462443 is about 428.1085900116.

The spelling of 78462443 in words is "seventy-eight million, four hundred sixty-two thousand, four hundred forty-three".