71606913 has 8 divisors (see below), whose sum is σ = 109115328. Its totient is φ = 40918224.

The previous prime is 71606893. The next prime is 71606917. The reversal of 71606913 is 31960617.

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

It is not a de Polignac number, because 71606913 - 2⁵ = 71606881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71606917) 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, 1704906 + ... + 1704947.

It is an arithmetic number, because the mean of its divisors is an integer number (13639416).

Almost surely, 2^71606913 is an apocalyptic number.

It is an amenable number.

71606913 is a deficient number, since it is larger than the sum of its proper divisors (37508415).

71606913 is a wasteful number, since it uses less digits than its factorization.

71606913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409863.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 71606913 is about 8462.0867993657. The cubic root of 71606913 is about 415.2582956801.

The spelling of 71606913 in words is "seventy-one million, six hundred six thousand, nine hundred thirteen".