71369999 has 8 divisors (see below), whose sum is σ = 73069440. Its totient is φ = 69687000.

The previous prime is 71369993. The next prime is 71370001. The reversal of 71369999 is 99996317.

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 71369999 - 2⁸ = 71369743 is a prime.

It is a Duffinian number.

71369999 is a modest number, since divided by 9999 gives 7136 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 71369999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71369993) 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, 4904 + ... + 12914.

It is an arithmetic number, because the mean of its divisors is an integer number (9133680).

Almost surely, 2^71369999 is an apocalyptic number.

71369999 is a deficient number, since it is larger than the sum of its proper divisors (1699441).

71369999 is a wasteful number, since it uses less digits than its factorization.

71369999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221.

The product of its digits is 826686, while the sum is 53.

The square root of 71369999 is about 8448.0766450122. The cubic root of 71369999 is about 414.7998241068.

The spelling of 71369999 in words is "seventy-one million, three hundred sixty-nine thousand, nine hundred ninety-nine".