1706664271 has 4 divisors (see below), whose sum is σ = 1837946152. Its totient is φ = 1575382392.

The previous prime is 1706664263. The next prime is 1706664293. The reversal of 1706664271 is 1724666071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1724666071 = 1327 ⋅1299673.

It is a cyclic number.

It is not a de Polignac number, because 1706664271 - 2³ = 1706664263 is a prime.

It is a super-2 number, since 2×1706664271² = 5825405867815922882, 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 (1706664251) 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, 65640921 + ... + 65640946.

It is an arithmetic number, because the mean of its divisors is an integer number (459486538).

Almost surely, 2^1706664271 is an apocalyptic number.

1706664271 is a deficient number, since it is larger than the sum of its proper divisors (131281881).

1706664271 is a wasteful number, since it uses less digits than its factorization.

1706664271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131281880.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1706664271 is about 41311.7933646072. The cubic root of 1706664271 is about 1195.0407065842.

The spelling of 1706664271 in words is "one billion, seven hundred six million, six hundred sixty-four thousand, two hundred seventy-one".