69686642 has 32 divisors (see below), whose sum is σ = 116536320. Its totient is φ = 31101840.

The previous prime is 69686609. The next prime is 69686653. The reversal of 69686642 is 24668696.

It is a plaindrome in base 13.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61493 + ... + 62615.

It is an arithmetic number, because the mean of its divisors is an integer number (3641760).

Almost surely, 2^69686642 is an apocalyptic number.

69686642 is a deficient number, since it is larger than the sum of its proper divisors (46849678).

69686642 is a wasteful number, since it uses less digits than its factorization.

69686642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 746496, while the sum is 47.

The square root of 69686642 is about 8347.8525382280. The cubic root of 69686642 is about 411.5126397025.

The spelling of 69686642 in words is "sixty-nine million, six hundred eighty-six thousand, six hundred forty-two".