78470341 has 2 divisors, whose sum is σ = 78470342. Its totient is φ = 78470340.

The previous prime is 78470311. The next prime is 78470347. The reversal of 78470341 is 14307487.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 12047841 = 8150^2 + 3471^2 .

It is an emirp because it is prime and its reverse (14307487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78470341 - 2⁵ = 78470309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78470297 and 78470306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78470347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39235170 + 39235171.

It is an arithmetic number, because the mean of its divisors is an integer number (39235171).

Almost surely, 2^78470341 is an apocalyptic number.

It is an amenable number.

78470341 is a deficient number, since it is larger than the sum of its proper divisors (1).

78470341 is an equidigital number, since it uses as much as digits as its factorization.

78470341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 78470341 is about 8858.3486610090. The cubic root of 78470341 is about 428.1229539462.

It can be divided in two parts, 78470 and 341, that multiplied together give a triangular number (26758270 = T₇₃₁₅).

The spelling of 78470341 in words is "seventy-eight million, four hundred seventy thousand, three hundred forty-one".