71740033 has 4 divisors (see below), whose sum is σ = 72750528. Its totient is φ = 70729540.

The previous prime is 71740021. The next prime is 71740057. The reversal of 71740033 is 33004717.

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.

It is a cyclic number.

It is not a de Polignac number, because 71740033 - 2¹³ = 71731841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71740733) 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, 505141 + ... + 505282.

It is an arithmetic number, because the mean of its divisors is an integer number (18187632).

Almost surely, 2^71740033 is an apocalyptic number.

It is an amenable number.

71740033 is a deficient number, since it is larger than the sum of its proper divisors (1010495).

71740033 is a wasteful number, since it uses less digits than its factorization.

71740033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010494.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 71740033 is about 8469.9488192078. The cubic root of 71740033 is about 415.5154634216.

The spelling of 71740033 in words is "seventy-one million, seven hundred forty thousand, thirty-three".