942397903 has 2 divisors, whose sum is σ = 942397904. Its totient is φ = 942397902.

The previous prime is 942397901. The next prime is 942397909. The reversal of 942397903 is 309793249.

It is a weak prime.

It is an emirp because it is prime and its reverse (309793249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 942397903 - 2¹ = 942397901 is a prime.

It is a super-2 number, since 2×942397903² = 1776227615157594818, which contains 22 as substring.

Together with 942397901, it forms a pair of twin primes.

It is the 30699-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942397901) by changing a digit.

It is a nontrivial repunit in base 30698.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471198951 + 471198952.

It is an arithmetic number, because the mean of its divisors is an integer number (471198952).

Almost surely, 2^942397903 is an apocalyptic number.

942397903 is a deficient number, since it is larger than the sum of its proper divisors (1).

942397903 is an equidigital number, since it uses as much as digits as its factorization.

942397903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 942397903 is about 30698.5000122156. The cubic root of 942397903 is about 980.4183633017.

The spelling of 942397903 in words is "nine hundred forty-two million, three hundred ninety-seven thousand, nine hundred three".