69980421 has 16 divisors (see below), whose sum is σ = 111273984. Its totient is φ = 38249904.

The previous prime is 69980411. The next prime is 69980441. The reversal of 69980421 is 12408996.

It is not a de Polignac number, because 69980421 - 2¹¹ = 69978373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69980421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69980411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71961 + ... + 72926.

It is an arithmetic number, because the mean of its divisors is an integer number (6954624).

Almost surely, 2^69980421 is an apocalyptic number.

It is an amenable number.

69980421 is a deficient number, since it is larger than the sum of its proper divisors (41293563).

69980421 is a wasteful number, since it uses less digits than its factorization.

69980421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144920.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 69980421 is about 8365.4301144651. The cubic root of 69980421 is about 412.0901022813.

The spelling of 69980421 in words is "sixty-nine million, nine hundred eighty thousand, four hundred twenty-one".