71763073 has 4 divisors (see below), whose sum is σ = 72192960. Its totient is φ = 71333188.

The previous prime is 71763067. The next prime is 71763089. The reversal of 71763073 is 37036717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71763073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71763053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214693 + ... + 215026.

It is an arithmetic number, because the mean of its divisors is an integer number (18048240).

Almost surely, 2^71763073 is an apocalyptic number.

It is an amenable number.

71763073 is a deficient number, since it is larger than the sum of its proper divisors (429887).

71763073 is a wasteful number, since it uses less digits than its factorization.

71763073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429886.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 71763073 is about 8471.3088126924. The cubic root of 71763073 is about 415.5599409200.

The spelling of 71763073 in words is "seventy-one million, seven hundred sixty-three thousand, seventy-three".