69985785 has 8 divisors (see below), whose sum is σ = 111977280. Its totient is φ = 37325744.

The previous prime is 69985771. The next prime is 69985789. The reversal of 69985785 is 58758996.

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

It is a cyclic number.

It is not a de Polignac number, because 69985785 - 2⁸ = 69985529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69985789) 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, 2332845 + ... + 2332874.

It is an arithmetic number, because the mean of its divisors is an integer number (13997160).

Almost surely, 2^69985785 is an apocalyptic number.

It is an amenable number.

69985785 is a deficient number, since it is larger than the sum of its proper divisors (41991495).

69985785 is a wasteful number, since it uses less digits than its factorization.

69985785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665727.

The product of its digits is 5443200, while the sum is 57.

The square root of 69985785 is about 8365.7507134746. The cubic root of 69985785 is about 412.1006309158.

The spelling of 69985785 in words is "sixty-nine million, nine hundred eighty-five thousand, seven hundred eighty-five".