71674385 has 8 divisors (see below), whose sum is σ = 86171496. Its totient is φ = 57231360.

The previous prime is 71674381. The next prime is 71674411. The reversal of 71674385 is 58347617.

It can be written as a sum of positive squares in 4 ways, for example, as 17372224 + 54302161 = 4168^2 + 7369^2 .

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

It is not a de Polignac number, because 71674385 - 2² = 71674381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71674381) 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, 10544 + ... + 15953.

It is an arithmetic number, because the mean of its divisors is an integer number (10771437).

Almost surely, 2^71674385 is an apocalyptic number.

It is an amenable number.

71674385 is a deficient number, since it is larger than the sum of its proper divisors (14497111).

71674385 is a wasteful number, since it uses less digits than its factorization.

71674385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27043.

The product of its digits is 141120, while the sum is 41.

The square root of 71674385 is about 8466.0725841443. The cubic root of 71674385 is about 415.3886811928.

The spelling of 71674385 in words is "seventy-one million, six hundred seventy-four thousand, three hundred eighty-five".