71429293 has 8 divisors (see below), whose sum is σ = 77170968. Its totient is φ = 65722944.

The previous prime is 71429287. The next prime is 71429299. The reversal of 71429293 is 39292417.

It is an interprime number because it is at equal distance from previous prime (71429287) and next prime (71429299).

It can be written as a sum of positive squares in 4 ways, for example, as 8655364 + 62773929 = 2942^2 + 7923^2 .

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 71429293 - 2⁵ = 71429261 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 (71429299) 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 7 ways as a sum of consecutive naturals, for example, 4546 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (9646371).

Almost surely, 2^71429293 is an apocalyptic number.

It is an amenable number.

71429293 is a deficient number, since it is larger than the sum of its proper divisors (5741675).

71429293 is a wasteful number, since it uses less digits than its factorization.

71429293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17663.

The product of its digits is 27216, while the sum is 37.

The square root of 71429293 is about 8451.5852359188. The cubic root of 71429293 is about 414.9146638297.

The spelling of 71429293 in words is "seventy-one million, four hundred twenty-nine thousand, two hundred ninety-three".