71802313 has 8 divisors (see below), whose sum is σ = 78477120. Its totient is φ = 65152080.

The previous prime is 71802259. The next prime is 71802317. The reversal of 71802313 is 31320817.

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 71802313 - 2⁹ = 71801801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71802317) 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, 268 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (9809640).

Almost surely, 2^71802313 is an apocalyptic number.

It is an amenable number.

71802313 is a deficient number, since it is larger than the sum of its proper divisors (6674807).

71802313 is a wasteful number, since it uses less digits than its factorization.

71802313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12287.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 71802313 is about 8473.6245491525. The cubic root of 71802313 is about 415.6356697508.

The spelling of 71802313 in words is "seventy-one million, eight hundred two thousand, three hundred thirteen".