94661921 has 2 divisors, whose sum is σ = 94661922. Its totient is φ = 94661920.

The previous prime is 94661891. The next prime is 94661929. The reversal of 94661921 is 12916649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68293696 + 26368225 = 8264^2 + 5135^2 .

It is a cyclic number.

It is not a de Polignac number, because 94661921 - 2¹⁰ = 94660897 is a prime.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 94661921 parts by 13759 straight cuts.

It is not a weakly prime, because it can be changed into another prime (94661929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47330960 + 47330961.

It is an arithmetic number, because the mean of its divisors is an integer number (47330961).

Almost surely, 2^94661921 is an apocalyptic number.

It is an amenable number.

94661921 is a deficient number, since it is larger than the sum of its proper divisors (1).

94661921 is an equidigital number, since it uses as much as digits as its factorization.

94661921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 94661921 is about 9729.4358007029. The cubic root of 94661921 is about 455.7483494653.

The spelling of 94661921 in words is "ninety-four million, six hundred sixty-one thousand, nine hundred twenty-one".