942473981 has 2 divisors, whose sum is σ = 942473982. Its totient is φ = 942473980.

The previous prime is 942473977. The next prime is 942474007. The reversal of 942473981 is 189374249.

942473981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709423225 + 233050756 = 26635^2 + 15266^2 .

It is a cyclic number.

It is not a de Polignac number, because 942473981 - 2² = 942473977 is a prime.

It is a super-2 number, since 2×942473981² = 1776514409723976722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942473971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471236990 + 471236991.

It is an arithmetic number, because the mean of its divisors is an integer number (471236991).

Almost surely, 2^942473981 is an apocalyptic number.

It is an amenable number.

942473981 is a deficient number, since it is larger than the sum of its proper divisors (1).

942473981 is an equidigital number, since it uses as much as digits as its factorization.

942473981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 942473981 is about 30699.7391031259. The cubic root of 942473981 is about 980.4447450318. Note that the first 3 decimals are identical.

The spelling of 942473981 in words is "nine hundred forty-two million, four hundred seventy-three thousand, nine hundred eighty-one".