69540289 has 24 divisors (see below), whose sum is σ = 89069760. Its totient is φ = 53097408.

The previous prime is 69540283. The next prime is 69540299. The reversal of 69540289 is 98204596.

It is not a de Polignac number, because 69540289 - 2³ = 69540281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69540281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33294 + ... + 35320.

It is an arithmetic number, because the mean of its divisors is an integer number (3711240).

Almost surely, 2^69540289 is an apocalyptic number.

It is an amenable number.

69540289 is a deficient number, since it is larger than the sum of its proper divisors (19529471).

69540289 is a wasteful number, since it uses less digits than its factorization.

69540289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 69540289 is about 8339.0820238201. The cubic root of 69540289 is about 411.2243571931.

The spelling of 69540289 in words is "sixty-nine million, five hundred forty thousand, two hundred eighty-nine".