894580993 has 2 divisors, whose sum is σ = 894580994. Its totient is φ = 894580992.

The previous prime is 894580979. The next prime is 894581003. The reversal of 894580993 is 399085498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891798769 + 2782224 = 29863^2 + 1668^2 .

It is a cyclic number.

It is not a de Polignac number, because 894580993 - 2²¹ = 892483841 is a prime.

It is not a weakly prime, because it can be changed into another prime (894580913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447290496 + 447290497.

It is an arithmetic number, because the mean of its divisors is an integer number (447290497).

Almost surely, 2^894580993 is an apocalyptic number.

It is an amenable number.

894580993 is a deficient number, since it is larger than the sum of its proper divisors (1).

894580993 is an equidigital number, since it uses as much as digits as its factorization.

894580993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 894580993 is about 29909.5468538057. The cubic root of 894580993 is about 963.5477068945.

The spelling of 894580993 in words is "eight hundred ninety-four million, five hundred eighty thousand, nine hundred ninety-three".