69842071 has 4 divisors (see below), whose sum is σ = 75214552. Its totient is φ = 64469592.

The previous prime is 69842057. The next prime is 69842167. The reversal of 69842071 is 17024896.

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

It is a cyclic number.

It is not a de Polignac number, because 69842071 - 2¹³ = 69833879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69842071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69842021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2686221 + ... + 2686246.

It is an arithmetic number, because the mean of its divisors is an integer number (18803638).

Almost surely, 2^69842071 is an apocalyptic number.

69842071 is a deficient number, since it is larger than the sum of its proper divisors (5372481).

69842071 is a wasteful number, since it uses less digits than its factorization.

69842071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372480.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 69842071 is about 8357.1568730041. The cubic root of 69842071 is about 411.8183582842.

The spelling of 69842071 in words is "sixty-nine million, eight hundred forty-two thousand, seventy-one".