71238793 has 4 divisors (see below), whose sum is σ = 72754560. Its totient is φ = 69723028.

The previous prime is 71238787. The next prime is 71238821. The reversal of 71238793 is 39783217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71238793 - 2⁹ = 71238281 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71238743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757813 + ... + 757906.

It is an arithmetic number, because the mean of its divisors is an integer number (18188640).

Almost surely, 2^71238793 is an apocalyptic number.

It is an amenable number.

71238793 is a deficient number, since it is larger than the sum of its proper divisors (1515767).

71238793 is a wasteful number, since it uses less digits than its factorization.

71238793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515766.

The product of its digits is 63504, while the sum is 40.

The square root of 71238793 is about 8440.3076365734. The cubic root of 71238793 is about 414.5454800239.

The spelling of 71238793 in words is "seventy-one million, two hundred thirty-eight thousand, seven hundred ninety-three".