69613389 has 6 divisors (see below), whose sum is σ = 100552686. Its totient is φ = 46408920.

The previous prime is 69613381. The next prime is 69613393. The reversal of 69613389 is 98331696.

It can be written as a sum of positive squares in only one way, i.e., 65076489 + 4536900 = 8067^2 + 2130^2 .

It is not a de Polignac number, because 69613389 - 2³ = 69613381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69613381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3867402 + ... + 3867419.

It is an arithmetic number, because the mean of its divisors is an integer number (16758781).

Almost surely, 2^69613389 is an apocalyptic number.

It is an amenable number.

69613389 is a deficient number, since it is larger than the sum of its proper divisors (30939297).

69613389 is a wasteful number, since it uses less digits than its factorization.

69613389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734827 (or 7734824 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 69613389 is about 8343.4638490258. The cubic root of 69613389 is about 411.3683982662.

The spelling of 69613389 in words is "sixty-nine million, six hundred thirteen thousand, three hundred eighty-nine".