71368947 has 12 divisors (see below), whose sum is σ = 111018544. Its totient is φ = 43919280.

The previous prime is 71368943. The next prime is 71368981. The reversal of 71368947 is 74986317.

It is not a de Polignac number, because 71368947 - 2² = 71368943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71368943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304879 + ... + 305112.

Almost surely, 2^71368947 is an apocalyptic number.

71368947 is a deficient number, since it is larger than the sum of its proper divisors (39649597).

71368947 is a wasteful number, since it uses less digits than its factorization.

71368947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610010 (or 610007 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 71368947 is about 8448.0143820900. The cubic root of 71368947 is about 414.7977860350.

The spelling of 71368947 in words is "seventy-one million, three hundred sixty-eight thousand, nine hundred forty-seven".