78370753 has 2 divisors, whose sum is σ = 78370754. Its totient is φ = 78370752.

The previous prime is 78370741. The next prime is 78370781. The reversal of 78370753 is 35707387.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41319184 + 37051569 = 6428^2 + 6087^2 .

It is a cyclic number.

It is not a de Polignac number, because 78370753 - 2⁹ = 78370241 is a prime.

It is a super-3 number, since 3×78370753³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (78371753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39185376 + 39185377.

It is an arithmetic number, because the mean of its divisors is an integer number (39185377).

Almost surely, 2^78370753 is an apocalyptic number.

It is an amenable number.

78370753 is a deficient number, since it is larger than the sum of its proper divisors (1).

78370753 is an equidigital number, since it uses as much as digits as its factorization.

78370753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 78370753 is about 8852.7257384379. The cubic root of 78370753 is about 427.9417646477.

The spelling of 78370753 in words is "seventy-eight million, three hundred seventy thousand, seven hundred fifty-three".