78030353 has 2 divisors, whose sum is σ = 78030354. Its totient is φ = 78030352.

The previous prime is 78030331. The next prime is 78030361. The reversal of 78030353 is 35303087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78021889 + 8464 = 8833^2 + 92^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78030353 is a prime.

It is not a weakly prime, because it can be changed into another prime (78030313) 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, 39015176 + 39015177.

It is an arithmetic number, because the mean of its divisors is an integer number (39015177).

Almost surely, 2^78030353 is an apocalyptic number.

It is an amenable number.

78030353 is a deficient number, since it is larger than the sum of its proper divisors (1).

78030353 is an equidigital number, since it uses as much as digits as its factorization.

78030353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 78030353 is about 8833.4790994262. The cubic root of 78030353 is about 427.3212832084.

The spelling of 78030353 in words is "seventy-eight million, thirty thousand, three hundred fifty-three".