942835381 has 2 divisors, whose sum is σ = 942835382. Its totient is φ = 942835380.

The previous prime is 942835379. The next prime is 942835403. The reversal of 942835381 is 183538249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866360356 + 76475025 = 29434^2 + 8745^2 .

It is an emirp because it is prime and its reverse (183538249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 942835381 - 2¹ = 942835379 is a prime.

It is a super-2 number, since 2×942835381² = 1777877111330830322, which contains 22 as substring.

Together with 942835379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942835321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471417690 + 471417691.

It is an arithmetic number, because the mean of its divisors is an integer number (471417691).

Almost surely, 2^942835381 is an apocalyptic number.

It is an amenable number.

942835381 is a deficient number, since it is larger than the sum of its proper divisors (1).

942835381 is an equidigital number, since it uses as much as digits as its factorization.

942835381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 942835381 is about 30705.6245824767. The cubic root of 942835381 is about 980.5700490921.

The spelling of 942835381 in words is "nine hundred forty-two million, eight hundred thirty-five thousand, three hundred eighty-one".