69444385 has 8 divisors (see below), whose sum is σ = 83488896. Its totient is φ = 55451760.

The previous prime is 69444379. The next prime is 69444407. The reversal of 69444385 is 58344496.

It is a happy number.

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

It is not a de Polignac number, because 69444385 - 2¹³ = 69436193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9961 + ... + 15430.

It is an arithmetic number, because the mean of its divisors is an integer number (10436112).

Almost surely, 2^69444385 is an apocalyptic number.

It is an amenable number.

69444385 is a deficient number, since it is larger than the sum of its proper divisors (14044511).

69444385 is a wasteful number, since it uses less digits than its factorization.

69444385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25943.

The product of its digits is 414720, while the sum is 43.

The square root of 69444385 is about 8333.3297666659. The cubic root of 69444385 is about 411.0352284396.

The spelling of 69444385 in words is "sixty-nine million, four hundred forty-four thousand, three hundred eighty-five".