894286993 has 2 divisors, whose sum is σ = 894286994. Its totient is φ = 894286992.

The previous prime is 894286979. The next prime is 894287029. The reversal of 894286993 is 399682498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 881377344 + 12909649 = 29688^2 + 3593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-894286993 is a prime.

It is not a weakly prime, because it can be changed into another prime (894286963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447143496 + 447143497.

It is an arithmetic number, because the mean of its divisors is an integer number (447143497).

Almost surely, 2^894286993 is an apocalyptic number.

It is an amenable number.

894286993 is a deficient number, since it is larger than the sum of its proper divisors (1).

894286993 is an equidigital number, since it uses as much as digits as its factorization.

894286993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 58.

The square root of 894286993 is about 29904.6316312373. The cubic root of 894286993 is about 963.4421401294.

The spelling of 894286993 in words is "eight hundred ninety-four million, two hundred eighty-six thousand, nine hundred ninety-three".