71313949 has 8 divisors (see below), whose sum is σ = 82883520. Its totient is φ = 60089856.

The previous prime is 71313923. The next prime is 71313971. The reversal of 71313949 is 94931317.

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 71313949 - 2⁵ = 71313917 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 (71313989) 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, 85924 + ... + 86749.

It is an arithmetic number, because the mean of its divisors is an integer number (10360440).

Almost surely, 2^71313949 is an apocalyptic number.

It is an amenable number.

71313949 is a deficient number, since it is larger than the sum of its proper divisors (11569571).

71313949 is a wasteful number, since it uses less digits than its factorization.

71313949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172739.

The product of its digits is 20412, while the sum is 37.

The square root of 71313949 is about 8444.7586703233. The cubic root of 71313949 is about 414.6912088183.

The spelling of 71313949 in words is "seventy-one million, three hundred thirteen thousand, nine hundred forty-nine".