69980439 has 16 divisors (see below), whose sum is σ = 98458880. Its totient is φ = 44089920.

The previous prime is 69980411. The next prime is 69980441. The reversal of 69980439 is 93408996.

It is a happy number.

It is not a de Polignac number, because 69980439 - 2⁷ = 69980311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69980639) 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 15 ways as a sum of consecutive naturals, for example, 26499 + ... + 29019.

It is an arithmetic number, because the mean of its divisors is an integer number (6153680).

Almost surely, 2^69980439 is an apocalyptic number.

69980439 is a deficient number, since it is larger than the sum of its proper divisors (28478441).

69980439 is a wasteful number, since it uses less digits than its factorization.

69980439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 69980439 is about 8365.4311903213. The cubic root of 69980439 is about 412.0901376132.

The spelling of 69980439 in words is "sixty-nine million, nine hundred eighty thousand, four hundred thirty-nine".