69378613 has 2 divisors, whose sum is σ = 69378614. Its totient is φ = 69378612.

The previous prime is 69378599. The next prime is 69378629. The reversal of 69378613 is 31687396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42732369 + 26646244 = 6537^2 + 5162^2 .

It is a cyclic number.

It is not a de Polignac number, because 69378613 - 2²⁵ = 35824181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69378613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69378013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34689306 + 34689307.

It is an arithmetic number, because the mean of its divisors is an integer number (34689307).

Almost surely, 2^69378613 is an apocalyptic number.

It is an amenable number.

69378613 is a deficient number, since it is larger than the sum of its proper divisors (1).

69378613 is an equidigital number, since it uses as much as digits as its factorization.

69378613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 69378613 is about 8329.3825101264. The cubic root of 69378613 is about 410.9054212156.

The spelling of 69378613 in words is "sixty-nine million, three hundred seventy-eight thousand, six hundred thirteen".