94252721 has 2 divisors, whose sum is σ = 94252722. Its totient is φ = 94252720.

The previous prime is 94252693. The next prime is 94252723. The reversal of 94252721 is 12725249.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68293696 + 25959025 = 8264^2 + 5095^2 .

It is an emirp because it is prime and its reverse (12725249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94252721 - 2⁶ = 94252657 is a prime.

Together with 94252723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94252723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47126360 + 47126361.

It is an arithmetic number, because the mean of its divisors is an integer number (47126361).

Almost surely, 2^94252721 is an apocalyptic number.

It is an amenable number.

94252721 is a deficient number, since it is larger than the sum of its proper divisors (1).

94252721 is an equidigital number, since it uses as much as digits as its factorization.

94252721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 94252721 is about 9708.3840570921. The cubic root of 94252721 is about 455.0907052591.

The spelling of 94252721 in words is "ninety-four million, two hundred fifty-two thousand, seven hundred twenty-one".