71693445 has 8 divisors (see below), whose sum is σ = 114709536. Its totient is φ = 38236496.

The previous prime is 71693411. The next prime is 71693473. The reversal of 71693445 is 54439617.

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 71693445 - 2¹³ = 71685253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389767 + ... + 2389796.

It is an arithmetic number, because the mean of its divisors is an integer number (14338692).

Almost surely, 2^71693445 is an apocalyptic number.

It is an amenable number.

71693445 is a deficient number, since it is larger than the sum of its proper divisors (43016091).

71693445 is a wasteful number, since it uses less digits than its factorization.

71693445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779571.

The product of its digits is 90720, while the sum is 39.

The square root of 71693445 is about 8467.1981788547. The cubic root of 71693445 is about 415.4254986536.

The spelling of 71693445 in words is "seventy-one million, six hundred ninety-three thousand, four hundred forty-five".