78700753 has 2 divisors, whose sum is σ = 78700754. Its totient is φ = 78700752.

The previous prime is 78700711. The next prime is 78700759. The reversal of 78700753 is 35700787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69772609 + 8928144 = 8353^2 + 2988^2 .

It is an emirp because it is prime and its reverse (35700787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78700753 - 2¹³ = 78692561 is a prime.

It is a super-3 number, since 3×78700753³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (78700759) 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, 39350376 + 39350377.

It is an arithmetic number, because the mean of its divisors is an integer number (39350377).

Almost surely, 2^78700753 is an apocalyptic number.

It is an amenable number.

78700753 is a deficient number, since it is larger than the sum of its proper divisors (1).

78700753 is an equidigital number, since it uses as much as digits as its factorization.

78700753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 78700753 is about 8871.3444866040. The cubic root of 78700753 is about 428.5415761164.

The spelling of 78700753 in words is "seventy-eight million, seven hundred thousand, seven hundred fifty-three".