71697043 has 8 divisors (see below), whose sum is σ = 79879680. Its totient is φ = 63791880.

The previous prime is 71697037. The next prime is 71697047. The reversal of 71697043 is 34079617.

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 71697043 - 2⁵ = 71697011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71696993 and 71697011.

It is not an unprimeable number, because it can be changed into a prime (71697047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68823 + ... + 69856.

It is an arithmetic number, because the mean of its divisors is an integer number (9984960).

Almost surely, 2^71697043 is an apocalyptic number.

71697043 is a deficient number, since it is larger than the sum of its proper divisors (8182637).

71697043 is a wasteful number, since it uses less digits than its factorization.

71697043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138737.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71697043 is about 8467.4106431659. The cubic root of 71697043 is about 415.4324480380.

The spelling of 71697043 in words is "seventy-one million, six hundred ninety-seven thousand, forty-three".