94651421 has 2 divisors, whose sum is σ = 94651422. Its totient is φ = 94651420.

The previous prime is 94651397. The next prime is 94651423. The reversal of 94651421 is 12415649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92371321 + 2280100 = 9611^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 94651421 - 2¹⁰ = 94650397 is a prime.

Together with 94651423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94651423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47325710 + 47325711.

It is an arithmetic number, because the mean of its divisors is an integer number (47325711).

Almost surely, 2^94651421 is an apocalyptic number.

It is an amenable number.

94651421 is a deficient number, since it is larger than the sum of its proper divisors (1).

94651421 is an equidigital number, since it uses as much as digits as its factorization.

94651421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 94651421 is about 9728.8961861046. The cubic root of 94651421 is about 455.7314981465.

The spelling of 94651421 in words is "ninety-four million, six hundred fifty-one thousand, four hundred twenty-one".