69871393 has 2 divisors, whose sum is σ = 69871394. Its totient is φ = 69871392.

The previous prime is 69871391. The next prime is 69871409. The reversal of 69871393 is 39317896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60341824 + 9529569 = 7768^2 + 3087^2 .

It is a cyclic number.

It is not a de Polignac number, because 69871393 - 2¹ = 69871391 is a prime.

It is a super-3 number, since 3×69871393³ (a number of 25 digits) contains 333 as substring.

Together with 69871391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (69871391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34935696 + 34935697.

It is an arithmetic number, because the mean of its divisors is an integer number (34935697).

Almost surely, 2^69871393 is an apocalyptic number.

It is an amenable number.

69871393 is a deficient number, since it is larger than the sum of its proper divisors (1).

69871393 is an equidigital number, since it uses as much as digits as its factorization.

69871393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 69871393 is about 8358.9109936642. The cubic root of 69871393 is about 411.8759818543.

The spelling of 69871393 in words is "sixty-nine million, eight hundred seventy-one thousand, three hundred ninety-three".