71074663 has 4 divisors (see below), whose sum is σ = 77536008. Its totient is φ = 64613320.

The previous prime is 71074613. The next prime is 71074673. The reversal of 71074663 is 36647017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71074663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71074613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3230656 + ... + 3230677.

It is an arithmetic number, because the mean of its divisors is an integer number (19384002).

Almost surely, 2^71074663 is an apocalyptic number.

71074663 is a deficient number, since it is larger than the sum of its proper divisors (6461345).

71074663 is a wasteful number, since it uses less digits than its factorization.

71074663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461344.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 71074663 is about 8430.5790429839. The cubic root of 71074663 is about 414.2268723915.

The spelling of 71074663 in words is "seventy-one million, seventy-four thousand, six hundred sixty-three".