71147994 has 8 divisors (see below), whose sum is σ = 142296000. Its totient is φ = 23715996.

The previous prime is 71147987. The next prime is 71148001. The reversal of 71147994 is 49974117.

It is an interprime number because it is at equal distance from previous prime (71147987) and next prime (71148001).

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

71147994 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5928994 + ... + 5929005.

It is an arithmetic number, because the mean of its divisors is an integer number (17787000).

Almost surely, 2^71147994 is an apocalyptic number.

71147994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71147994 is a wasteful number, since it uses less digits than its factorization.

71147994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858004.

The product of its digits is 63504, while the sum is 42.

The square root of 71147994 is about 8434.9270299156. The cubic root of 71147994 is about 414.3692824001.

The spelling of 71147994 in words is "seventy-one million, one hundred forty-seven thousand, nine hundred ninety-four".