69387071 has 4 divisors (see below), whose sum is σ = 74724552. Its totient is φ = 64049592.

The previous prime is 69386987. The next prime is 69387077. The reversal of 69387071 is 17078396.

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 69387071 - 2²⁶ = 2278207 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 (69387077) 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, 2668721 + ... + 2668746.

It is an arithmetic number, because the mean of its divisors is an integer number (18681138).

Almost surely, 2^69387071 is an apocalyptic number.

69387071 is a deficient number, since it is larger than the sum of its proper divisors (5337481).

69387071 is a wasteful number, since it uses less digits than its factorization.

69387071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337480.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 69387071 is about 8329.8902153630. The cubic root of 69387071 is about 410.9221184689.

The spelling of 69387071 in words is "sixty-nine million, three hundred eighty-seven thousand, seventy-one".