71766001 has 4 divisors (see below), whose sum is σ = 71829504. Its totient is φ = 71702500.

The previous prime is 71765989. The next prime is 71766043. The reversal of 71766001 is 10066717.

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 not a de Polignac number, because 71766001 - 2¹³ = 71757809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71766301) 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, 30025 + ... + 32326.

It is an arithmetic number, because the mean of its divisors is an integer number (17957376).

Almost surely, 2^71766001 is an apocalyptic number.

It is an amenable number.

71766001 is a deficient number, since it is larger than the sum of its proper divisors (63503).

71766001 is a wasteful number, since it uses less digits than its factorization.

71766001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63502.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 71766001 is about 8471.4816295616. The cubic root of 71766001 is about 415.5655925869.

The spelling of 71766001 in words is "seventy-one million, seven hundred sixty-six thousand, one".