71403393 has 16 divisors (see below), whose sum is σ = 97732800. Its totient is φ = 46353600.

The previous prime is 71403391. The next prime is 71403403. The reversal of 71403393 is 39330417.

It is not a de Polignac number, because 71403393 - 2¹ = 71403391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71403393.

It is not an unprimeable number, because it can be changed into a prime (71403391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17443 + ... + 21143.

It is an arithmetic number, because the mean of its divisors is an integer number (6108300).

Almost surely, 2^71403393 is an apocalyptic number.

It is an amenable number.

71403393 is a deficient number, since it is larger than the sum of its proper divisors (26329407).

71403393 is a wasteful number, since it uses less digits than its factorization.

71403393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 71403393 is about 8450.0528400715. The cubic root of 71403393 is about 414.8645089214.

The spelling of 71403393 in words is "seventy-one million, four hundred three thousand, three hundred ninety-three".