71838206 has 8 divisors (see below), whose sum is σ = 117553464. Its totient is φ = 32653720.

The previous prime is 71838197. The next prime is 71838211. The reversal of 71838206 is 60283817.

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

It is a congruent number.

It is an unprimeable number.

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, 1632665 + ... + 1632708.

It is an arithmetic number, because the mean of its divisors is an integer number (14694183).

Almost surely, 2^71838206 is an apocalyptic number.

71838206 is a deficient number, since it is larger than the sum of its proper divisors (45715258).

71838206 is a wasteful number, since it uses less digits than its factorization.

71838206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265386.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 71838206 is about 8475.7422093879. The cubic root of 71838206 is about 415.7049150871.

The spelling of 71838206 in words is "seventy-one million, eight hundred thirty-eight thousand, two hundred six".