94636921 has 2 divisors, whose sum is σ = 94636922. Its totient is φ = 94636920.

The previous prime is 94636907. The next prime is 94636933. The reversal of 94636921 is 12963649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 26409321 = 8260^2 + 5139^2 .

It is an emirp because it is prime and its reverse (12963649) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94636921 - 2⁷ = 94636793 is a prime.

It is a super-2 number, since 2×94636921² = 17912293632720482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94636901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47318460 + 47318461.

It is an arithmetic number, because the mean of its divisors is an integer number (47318461).

Almost surely, 2^94636921 is an apocalyptic number.

It is an amenable number.

94636921 is a deficient number, since it is larger than the sum of its proper divisors (1).

94636921 is an equidigital number, since it uses as much as digits as its factorization.

94636921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 94636921 is about 9728.1509548321. The cubic root of 94636921 is about 455.7082252288.

It can be divided in two parts, 9463 and 6921, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 94636921 in words is "ninety-four million, six hundred thirty-six thousand, nine hundred twenty-one".