71973937 has 8 divisors (see below), whose sum is σ = 87094656. Its totient is φ = 58062912.

The previous prime is 71973883. The next prime is 71973943. The reversal of 71973937 is 73937917.

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 71973937 - 2⁷ = 71973809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71973037) 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, 302293 + ... + 302530.

It is an arithmetic number, because the mean of its divisors is an integer number (10886832).

Almost surely, 2^71973937 is an apocalyptic number.

It is an amenable number.

71973937 is a deficient number, since it is larger than the sum of its proper divisors (15120719).

71973937 is a wasteful number, since it uses less digits than its factorization.

71973937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604847.

The product of its digits is 250047, while the sum is 46.

The square root of 71973937 is about 8483.7454582278. The cubic root of 71973937 is about 415.9665611220.

The spelling of 71973937 in words is "seventy-one million, nine hundred seventy-three thousand, nine hundred thirty-seven".