894493973 has 2 divisors, whose sum is σ = 894493974. Its totient is φ = 894493972.

The previous prime is 894493949. The next prime is 894493979. The reversal of 894493973 is 379394498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816930724 + 77563249 = 28582^2 + 8807^2 .

It is a cyclic number.

It is not a de Polignac number, because 894493973 - 2¹⁴ = 894477589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894493979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447246986 + 447246987.

It is an arithmetic number, because the mean of its divisors is an integer number (447246987).

Almost surely, 2^894493973 is an apocalyptic number.

It is an amenable number.

894493973 is a deficient number, since it is larger than the sum of its proper divisors (1).

894493973 is an equidigital number, since it uses as much as digits as its factorization.

894493973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 56.

The square root of 894493973 is about 29908.0920989621. The cubic root of 894493973 is about 963.5164629785.

The spelling of 894493973 in words is "eight hundred ninety-four million, four hundred ninety-three thousand, nine hundred seventy-three".