78260803 has 2 divisors, whose sum is σ = 78260804. Its totient is φ = 78260802.

The previous prime is 78260779. The next prime is 78260837. The reversal of 78260803 is 30806287.

It is a happy number.

It is an a-pointer prime, because the next prime (78260837) can be obtained adding 78260803 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78260803 - 2¹³ = 78252611 is a prime.

It is a super-2 number, since 2×78260803² = 12249506572409618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78260873) 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, 39130401 + 39130402.

It is an arithmetic number, because the mean of its divisors is an integer number (39130402).

Almost surely, 2^78260803 is an apocalyptic number.

78260803 is a deficient number, since it is larger than the sum of its proper divisors (1).

78260803 is an equidigital number, since it uses as much as digits as its factorization.

78260803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78260803 is about 8846.5136070658. The cubic root of 78260803 is about 427.7415444708.

The spelling of 78260803 in words is "seventy-eight million, two hundred sixty thousand, eight hundred three".