71604633 has 4 divisors (see below), whose sum is σ = 95472848. Its totient is φ = 47736420.

The previous prime is 71604619. The next prime is 71604647. The reversal of 71604633 is 33640617.

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: 33640617 = 3 ⋅11213539.

It is an interprime number because it is at equal distance from previous prime (71604619) and next prime (71604647).

It is not a de Polignac number, because 71604633 - 2⁵ = 71604601 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 71604633.

It is not an unprimeable number, because it can be changed into a prime (71604733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11934103 + ... + 11934108.

It is an arithmetic number, because the mean of its divisors is an integer number (23868212).

Almost surely, 2^71604633 is an apocalyptic number.

It is an amenable number.

71604633 is a deficient number, since it is larger than the sum of its proper divisors (23868215).

71604633 is a wasteful number, since it uses less digits than its factorization.

71604633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868214.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 71604633 is about 8461.9520797509. The cubic root of 71604633 is about 415.2538882893.

The spelling of 71604633 in words is "seventy-one million, six hundred four thousand, six hundred thirty-three".