71364665 has 8 divisors (see below), whose sum is σ = 90144960. Its totient is φ = 54086832.

The previous prime is 71364637. The next prime is 71364673. The reversal of 71364665 is 56646317.

It is a happy number.

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 71364665 - 2⁸ = 71364409 is a prime.

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, 375509 + ... + 375698.

It is an arithmetic number, because the mean of its divisors is an integer number (11268120).

Almost surely, 2^71364665 is an apocalyptic number.

It is an amenable number.

71364665 is a deficient number, since it is larger than the sum of its proper divisors (18780295).

71364665 is a wasteful number, since it uses less digits than its factorization.

71364665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751231.

The product of its digits is 90720, while the sum is 38.

The square root of 71364665 is about 8447.7609459549. The cubic root of 71364665 is about 414.7894901784.

The spelling of 71364665 in words is "seventy-one million, three hundred sixty-four thousand, six hundred sixty-five".