71170669 has 4 divisors (see below), whose sum is σ = 73624860. Its totient is φ = 68716480.

The previous prime is 71170661. The next prime is 71170703. The reversal of 71170669 is 96607117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96607117 = 1567 ⋅61651.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 19474569 = 7190^2 + 4413^2 .

It is a cyclic number.

It is not a de Polignac number, because 71170669 - 2³ = 71170661 is a prime.

It is a super-2 number, since 2×71170669² = 10130528251815122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71170661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227052 + ... + 1227109.

It is an arithmetic number, because the mean of its divisors is an integer number (18406215).

Almost surely, 2^71170669 is an apocalyptic number.

It is an amenable number.

71170669 is a deficient number, since it is larger than the sum of its proper divisors (2454191).

71170669 is a wasteful number, since it uses less digits than its factorization.

71170669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454190.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 71170669 is about 8436.2710364236. The cubic root of 71170669 is about 414.4132978153.

The spelling of 71170669 in words is "seventy-one million, one hundred seventy thousand, six hundred sixty-nine".