71371699 has 4 divisors (see below), whose sum is σ = 81567664. Its totient is φ = 61175736.

The previous prime is 71371679. The next prime is 71371711. The reversal of 71371699 is 99617317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99617317 = 457 ⋅217981.

It is a cyclic number.

It is not a de Polignac number, because 71371699 - 2⁷ = 71371571 is a prime.

It is a super-3 number, since 3×71371699³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71371679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5097972 + ... + 5097985.

It is an arithmetic number, because the mean of its divisors is an integer number (20391916).

Almost surely, 2^71371699 is an apocalyptic number.

71371699 is a deficient number, since it is larger than the sum of its proper divisors (10195965).

71371699 is a wasteful number, since it uses less digits than its factorization.

71371699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195964.

The product of its digits is 71442, while the sum is 43.

The square root of 71371699 is about 8448.1772590305. The cubic root of 71371699 is about 414.8031175266.

It can be divided in two parts, 7137 and 1699, that added together give a square (8836 = 94²).

The spelling of 71371699 in words is "seventy-one million, three hundred seventy-one thousand, six hundred ninety-nine".