1706242243 has 4 divisors (see below), whose sum is σ = 1707002488. Its totient is φ = 1705482000.

The previous prime is 1706242157. The next prime is 1706242253. The reversal of 1706242243 is 3422426071.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1706242243 is a prime.

It is a super-2 number, since 2×1706242243² = 5822525183595342098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1706242253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376746 + ... + 381247.

It is an arithmetic number, because the mean of its divisors is an integer number (426750622).

Almost surely, 2^1706242243 is an apocalyptic number.

1706242243 is a deficient number, since it is larger than the sum of its proper divisors (760245).

1706242243 is an equidigital number, since it uses as much as digits as its factorization.

1706242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760244.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1706242243 is about 41306.6852095396. The cubic root of 1706242243 is about 1194.9421942942.

The spelling of 1706242243 in words is "one billion, seven hundred six million, two hundred forty-two thousand, two hundred forty-three".