69499385 has 4 divisors (see below), whose sum is σ = 83399268. Its totient is φ = 55599504.

The previous prime is 69499379. The next prime is 69499403. The reversal of 69499385 is 58399496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41165056 + 28334329 = 6416^2 + 5323^2 .

It is a cyclic number.

It is not a de Polignac number, because 69499385 - 2¹⁸ = 69237241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6949934 + ... + 6949943.

It is an arithmetic number, because the mean of its divisors is an integer number (20849817).

Almost surely, 2^69499385 is an apocalyptic number.

It is an amenable number.

69499385 is a deficient number, since it is larger than the sum of its proper divisors (13899883).

69499385 is a wasteful number, since it uses less digits than its factorization.

69499385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13899882.

The product of its digits is 2099520, while the sum is 53.

The square root of 69499385 is about 8336.6291149361. The cubic root of 69499385 is about 411.1437131979.

The spelling of 69499385 in words is "sixty-nine million, four hundred ninety-nine thousand, three hundred eighty-five".