940206871 has 2 divisors, whose sum is σ = 940206872. Its totient is φ = 940206870.

The previous prime is 940206863. The next prime is 940206893. The reversal of 940206871 is 178602049.

It is a weak prime.

It is an emirp because it is prime and its reverse (178602049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940206871 - 2³ = 940206863 is a prime.

It is a super-2 number, since 2×940206871² = 1767977920551221282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 940206871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940206671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470103435 + 470103436.

It is an arithmetic number, because the mean of its divisors is an integer number (470103436).

Almost surely, 2^940206871 is an apocalyptic number.

940206871 is a deficient number, since it is larger than the sum of its proper divisors (1).

940206871 is an equidigital number, since it uses as much as digits as its factorization.

940206871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 940206871 is about 30662.7929419353. The cubic root of 940206871 is about 979.6579644226.

The spelling of 940206871 in words is "nine hundred forty million, two hundred six thousand, eight hundred seventy-one".