71208293 has 8 divisors (see below), whose sum is σ = 76780536. Its totient is φ = 65649600.

The previous prime is 71208287. The next prime is 71208323. The reversal of 71208293 is 39280217.

It can be written as a sum of positive squares in 4 ways, for example, as 14386849 + 56821444 = 3793^2 + 7538^2 .

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 71208293 - 2⁶ = 71208229 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 (71208493) 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, 9323 + ... + 15143.

It is an arithmetic number, because the mean of its divisors is an integer number (9597567).

Almost surely, 2^71208293 is an apocalyptic number.

It is an amenable number.

71208293 is a deficient number, since it is larger than the sum of its proper divisors (5572243).

71208293 is a wasteful number, since it uses less digits than its factorization.

71208293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 71208293 is about 8438.5006369615. The cubic root of 71208293 is about 414.4863107546.

The spelling of 71208293 in words is "seventy-one million, two hundred eight thousand, two hundred ninety-three".