76530071 has 4 divisors (see below), whose sum is σ = 76930944. Its totient is φ = 76129200.

The previous prime is 76530031. The next prime is 76530079. The reversal of 76530071 is 17003567.

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-76530071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76530079) 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, 200150 + ... + 200531.

It is an arithmetic number, because the mean of its divisors is an integer number (19232736).

Almost surely, 2^76530071 is an apocalyptic number.

76530071 is a deficient number, since it is larger than the sum of its proper divisors (400873).

76530071 is a wasteful number, since it uses less digits than its factorization.

76530071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400872.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 76530071 is about 8748.1467180198. The cubic root of 76530071 is about 424.5648528855.

The spelling of 76530071 in words is "seventy-six million, five hundred thirty thousand, seventy-one".