71397069 has 8 divisors (see below), whose sum is σ = 95690112. Its totient is φ = 47351040.

The previous prime is 71397047. The next prime is 71397107. The reversal of 71397069 is 96079317.

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

It is not a de Polignac number, because 71397069 - 2⁹ = 71396557 is a prime.

It is a super-2 number, since 2×71397069² = 10195082923581522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71397069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71397169) 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 7 ways as a sum of consecutive naturals, for example, 61077 + ... + 62234.

It is an arithmetic number, because the mean of its divisors is an integer number (11961264).

Almost surely, 2^71397069 is an apocalyptic number.

It is an amenable number.

71397069 is a deficient number, since it is larger than the sum of its proper divisors (24293043).

71397069 is a wasteful number, since it uses less digits than its factorization.

71397069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123507.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 71397069 is about 8449.6786329422. The cubic root of 71397069 is about 414.8522607611.

The spelling of 71397069 in words is "seventy-one million, three hundred ninety-seven thousand, sixty-nine".