942070721 has 2 divisors, whose sum is σ = 942070722. Its totient is φ = 942070720.

The previous prime is 942070699. The next prime is 942070741. The reversal of 942070721 is 127070249.

942070721 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., 885895696 + 56175025 = 29764^2 + 7495^2 .

It is an emirp because it is prime and its reverse (127070249) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-942070721 is a prime.

It is a Chen prime.

It is equal to p_48047702 and since 942070721 and 48047702 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (942070741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471035360 + 471035361.

It is an arithmetic number, because the mean of its divisors is an integer number (471035361).

Almost surely, 2^942070721 is an apocalyptic number.

It is an amenable number.

942070721 is a deficient number, since it is larger than the sum of its proper divisors (1).

942070721 is an equidigital number, since it uses as much as digits as its factorization.

942070721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 942070721 is about 30693.1705921692. The cubic root of 942070721 is about 980.3048895170.

The spelling of 942070721 in words is "nine hundred forty-two million, seventy thousand, seven hundred twenty-one".