71682601 has 4 divisors (see below), whose sum is σ = 71778052. Its totient is φ = 71587152.

The previous prime is 71682599. The next prime is 71682613. The reversal of 71682601 is 10628617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10628617 = 149 ⋅71333.

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 37810201 = 5820^2 + 6149^2 .

It is a cyclic number.

It is not a de Polignac number, because 71682601 - 2¹ = 71682599 is a prime.

It is a super-2 number, since 2×71682601² = 10276790572250402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71682631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46590 + ... + 48103.

It is an arithmetic number, because the mean of its divisors is an integer number (17944513).

Almost surely, 2^71682601 is an apocalyptic number.

It is an amenable number.

71682601 is a deficient number, since it is larger than the sum of its proper divisors (95451).

71682601 is an equidigital number, since it uses as much as digits as its factorization.

71682601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95450.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 71682601 is about 8466.5578011374. The cubic root of 71682601 is about 415.4045525208.

The spelling of 71682601 in words is "seventy-one million, six hundred eighty-two thousand, six hundred one".