71670001 has 8 divisors (see below), whose sum is σ = 80539200. Its totient is φ = 63280272.

The previous prime is 71669987. The next prime is 71670019. The reversal of 71670001 is 10007617.

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 71670001 - 2¹⁵ = 71637233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71670601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119551 + ... + 120148.

It is an arithmetic number, because the mean of its divisors is an integer number (10067400).

Almost surely, 2^71670001 is an apocalyptic number.

It is an amenable number.

71670001 is a deficient number, since it is larger than the sum of its proper divisors (8869199).

71670001 is a wasteful number, since it uses less digits than its factorization.

71670001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239735.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 71670001 is about 8465.8136643798. The cubic root of 71670001 is about 415.3802118673.

Adding to 71670001 its reverse (10007617), we get a palindrome (81677618).

The spelling of 71670001 in words is "seventy-one million, six hundred seventy thousand, one".