71946393 has 8 divisors (see below), whose sum is σ = 96148800. Its totient is φ = 47854128.

The previous prime is 71946383. The next prime is 71946401. The reversal of 71946393 is 39364917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71946393 - 2⁴ = 71946377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71946383) 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 7 ways as a sum of consecutive naturals, for example, 25998 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (12018600).

Almost surely, 2^71946393 is an apocalyptic number.

It is an amenable number.

71946393 is a deficient number, since it is larger than the sum of its proper divisors (24202407).

71946393 is a wasteful number, since it uses less digits than its factorization.

71946393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55071.

The product of its digits is 122472, while the sum is 42.

The square root of 71946393 is about 8482.1219632825. The cubic root of 71946393 is about 415.9134917040.

The spelling of 71946393 in words is "seventy-one million, nine hundred forty-six thousand, three hundred ninety-three".