71790101 has 8 divisors (see below), whose sum is σ = 73917144. Its totient is φ = 69672960.

The previous prime is 71790097. The next prime is 71790157. The reversal of 71790101 is 10109717.

It can be written as a sum of positive squares in 4 ways, for example, as 19589476 + 52200625 = 4426^2 + 7225^2 .

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 71790101 - 2² = 71790097 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 (71790181) 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 7 ways as a sum of consecutive naturals, for example, 13781 + ... + 18261.

It is an arithmetic number, because the mean of its divisors is an integer number (9239643).

Almost surely, 2^71790101 is an apocalyptic number.

It is an amenable number.

71790101 is a deficient number, since it is larger than the sum of its proper divisors (2127043).

71790101 is a wasteful number, since it uses less digits than its factorization.

71790101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 71790101 is about 8472.9039295864. The cubic root of 71790101 is about 415.6121049083.

Adding to 71790101 its reverse (10109717), we get a palindrome (81899818).

The spelling of 71790101 in words is "seventy-one million, seven hundred ninety thousand, one hundred one".