71780327 has 8 divisors (see below), whose sum is σ = 73598976. Its totient is φ = 69973912.

The previous prime is 71780323. The next prime is 71780339. The reversal of 71780327 is 72308717.

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

It is a cyclic number.

It is not a de Polignac number, because 71780327 - 2² = 71780323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71780321) 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, 9458 + ... + 15264.

It is an arithmetic number, because the mean of its divisors is an integer number (9199872).

Almost surely, 2^71780327 is an apocalyptic number.

71780327 is a deficient number, since it is larger than the sum of its proper divisors (1818649).

71780327 is a wasteful number, since it uses less digits than its factorization.

71780327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 71780327 is about 8472.3271301337. The cubic root of 71780327 is about 415.5932426185.

The spelling of 71780327 in words is "seventy-one million, seven hundred eighty thousand, three hundred twenty-seven".