69671389 has 8 divisors (see below), whose sum is σ = 75021120. Its totient is φ = 64460736.

The previous prime is 69671359. The next prime is 69671417. The reversal of 69671389 is 98317696.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69671389 - 2¹³ = 69663197 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 (69671339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33729 + ... + 35734.

It is an arithmetic number, because the mean of its divisors is an integer number (9377640).

Almost surely, 2^69671389 is an apocalyptic number.

It is an amenable number.

69671389 is a deficient number, since it is larger than the sum of its proper divisors (5349731).

69671389 is a wasteful number, since it uses less digits than its factorization.

69671389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69539.

The product of its digits is 489888, while the sum is 49.

The square root of 69671389 is about 8346.9388999800. The cubic root of 69671389 is about 411.4826135735.

The spelling of 69671389 in words is "sixty-nine million, six hundred seventy-one thousand, three hundred eighty-nine".