942921997 has 2 divisors, whose sum is σ = 942921998. Its totient is φ = 942921996.

The previous prime is 942921953. The next prime is 942922003. The reversal of 942921997 is 799129249.

942921997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829094436 + 113827561 = 28794^2 + 10669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-942921997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (942921937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471460998 + 471460999.

It is an arithmetic number, because the mean of its divisors is an integer number (471460999).

Almost surely, 2^942921997 is an apocalyptic number.

It is an amenable number.

942921997 is a deficient number, since it is larger than the sum of its proper divisors (1).

942921997 is an equidigital number, since it uses as much as digits as its factorization.

942921997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 52.

The square root of 942921997 is about 30707.0349757185. The cubic root of 942921997 is about 980.6000757035.

The spelling of 942921997 in words is "nine hundred forty-two million, nine hundred twenty-one thousand, nine hundred ninety-seven".