71606633 has 4 divisors (see below), whose sum is σ = 81836160. Its totient is φ = 61377108.

The previous prime is 71606617. The next prime is 71606651. The reversal of 71606633 is 33660617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33660617 = 109 ⋅308813.

It is a cyclic number.

It is not a de Polignac number, because 71606633 - 2⁴ = 71606617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71606633.

It is not an unprimeable number, because it can be changed into a prime (71606693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5114753 + ... + 5114766.

It is an arithmetic number, because the mean of its divisors is an integer number (20459040).

Almost surely, 2^71606633 is an apocalyptic number.

It is an amenable number.

71606633 is a deficient number, since it is larger than the sum of its proper divisors (10229527).

71606633 is a wasteful number, since it uses less digits than its factorization.

71606633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10229526.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 71606633 is about 8462.0702549672. The cubic root of 71606633 is about 415.2577544266.

The spelling of 71606633 in words is "seventy-one million, six hundred six thousand, six hundred thirty-three".