69381613 has 4 divisors (see below), whose sum is σ = 79293280. Its totient is φ = 59469948.

The previous prime is 69381577. The next prime is 69381643. The reversal of 69381613 is 31618396.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69381613 - 2²¹ = 67284461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69381643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4955823 + ... + 4955836.

It is an arithmetic number, because the mean of its divisors is an integer number (19823320).

Almost surely, 2^69381613 is an apocalyptic number.

It is an amenable number.

69381613 is a deficient number, since it is larger than the sum of its proper divisors (9911667).

69381613 is an equidigital number, since it uses as much as digits as its factorization.

69381613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911666.

The product of its digits is 23328, while the sum is 37.

The square root of 69381613 is about 8329.5625935580. The cubic root of 69381613 is about 410.9113437828.

The spelling of 69381613 in words is "sixty-nine million, three hundred eighty-one thousand, six hundred thirteen".