69686613 has 6 divisors (see below), whose sum is σ = 100658454. Its totient is φ = 46457736.

The previous prime is 69686609. The next prime is 69686653. The reversal of 69686613 is 31668696.

It can be written as a sum of positive squares in only one way, i.e., 69105969 + 580644 = 8313^2 + 762^2 .

It is not a de Polignac number, because 69686613 - 2² = 69686609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69686653) 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, 3871470 + ... + 3871487.

It is an arithmetic number, because the mean of its divisors is an integer number (16776409).

Almost surely, 2^69686613 is an apocalyptic number.

It is an amenable number.

69686613 is a deficient number, since it is larger than the sum of its proper divisors (30971841).

69686613 is a wasteful number, since it uses less digits than its factorization.

69686613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742963 (or 7742960 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 69686613 is about 8347.8508012542. The cubic root of 69686613 is about 411.5125826190.

The spelling of 69686613 in words is "sixty-nine million, six hundred eighty-six thousand, six hundred thirteen".