69982865 has 4 divisors (see below), whose sum is σ = 83979444. Its totient is φ = 55986288.

The previous prime is 69982849. The next prime is 69982879. The reversal of 69982865 is 56828996.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18731584 + 51251281 = 4328^2 + 7159^2 .

It is a cyclic number.

It is not a de Polignac number, because 69982865 - 2⁴ = 69982849 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 6998282 + ... + 6998291.

It is an arithmetic number, because the mean of its divisors is an integer number (20994861).

Almost surely, 2^69982865 is an apocalyptic number.

It is an amenable number.

69982865 is a deficient number, since it is larger than the sum of its proper divisors (13996579).

69982865 is a wasteful number, since it uses less digits than its factorization.

69982865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13996578.

The product of its digits is 1866240, while the sum is 53.

The square root of 69982865 is about 8365.5761905562. The cubic root of 69982865 is about 412.0948995111.

The spelling of 69982865 in words is "sixty-nine million, nine hundred eighty-two thousand, eight hundred sixty-five".