71740325 has 6 divisors (see below), whose sum is σ = 88958034. Its totient is φ = 57392240.

The previous prime is 71740321. The next prime is 71740343. The reversal of 71740325 is 52304717.

It can be written as a sum of positive squares in 3 ways, for example, as 23493409 + 48246916 = 4847^2 + 6946^2 .

It is not a de Polignac number, because 71740325 - 2² = 71740321 is a prime.

It is a super-2 number, since 2×71740325² = 10293348462211250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1434782 + ... + 1434831.

It is an arithmetic number, because the mean of its divisors is an integer number (14826339).

Almost surely, 2^71740325 is an apocalyptic number.

It is an amenable number.

71740325 is a deficient number, since it is larger than the sum of its proper divisors (17217709).

71740325 is a wasteful number, since it uses less digits than its factorization.

71740325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869623 (or 2869618 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 71740325 is about 8469.9660566026. The cubic root of 71740325 is about 415.5160271717.

The spelling of 71740325 in words is "seventy-one million, seven hundred forty thousand, three hundred twenty-five".