69086890 has 16 divisors (see below), whose sum is σ = 124454880. Its totient is φ = 27612880.

The previous prime is 69086887. The next prime is 69086891. The reversal of 69086890 is 9868096.

It is a happy number.

69086890 is nontrivially palindromic in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 69086890.

It is not an unprimeable number, because it can be changed into a prime (69086891) 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 7 ways as a sum of consecutive naturals, for example, 18045 + ... + 21535.

It is an arithmetic number, because the mean of its divisors is an integer number (7778430).

Almost surely, 2^69086890 is an apocalyptic number.

69086890 is a deficient number, since it is larger than the sum of its proper divisors (55367990).

69086890 is a wasteful number, since it uses less digits than its factorization.

69086890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 69086890 is about 8311.8523807873. The cubic root of 69086890 is about 410.3286874497.

The spelling of 69086890 in words is "sixty-nine million, eighty-six thousand, eight hundred ninety".