94732021 has 2 divisors, whose sum is σ = 94732022. Its totient is φ = 94732020.

The previous prime is 94732019. The next prime is 94732049. The reversal of 94732021 is 12023749.

It is an a-pointer prime, because the next prime (94732049) can be obtained adding 94732021 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53129521 + 41602500 = 7289^2 + 6450^2 .

It is an emirp because it is prime and its reverse (12023749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94732021 - 2¹ = 94732019 is a prime.

Together with 94732019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94732051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47366010 + 47366011.

It is an arithmetic number, because the mean of its divisors is an integer number (47366011).

Almost surely, 2^94732021 is an apocalyptic number.

It is an amenable number.

94732021 is a deficient number, since it is larger than the sum of its proper divisors (1).

94732021 is an equidigital number, since it uses as much as digits as its factorization.

94732021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 94732021 is about 9733.0376039549. The cubic root of 94732021 is about 455.8608201612.

The spelling of 94732021 in words is "ninety-four million, seven hundred thirty-two thousand, twenty-one".