71606994 has 8 divisors (see below), whose sum is σ = 143214000. Its totient is φ = 23868996.

The previous prime is 71606989. The next prime is 71607001. The reversal of 71606994 is 49960617.

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

71606994 is an admirable number.

It is a Curzon 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, 5967244 + ... + 5967255.

It is an arithmetic number, because the mean of its divisors is an integer number (17901750).

Almost surely, 2^71606994 is an apocalyptic number.

71606994 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.

71606994 is a wasteful number, since it uses less digits than its factorization.

71606994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11934504.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 71606994 is about 8462.0915854179. The cubic root of 71606994 is about 415.2584522568.

The spelling of 71606994 in words is "seventy-one million, six hundred six thousand, nine hundred ninety-four".