894278653 has 2 divisors, whose sum is σ = 894278654. Its totient is φ = 894278652.

The previous prime is 894278639. The next prime is 894278683. The reversal of 894278653 is 356872498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 892635129 + 1643524 = 29877^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 894278653 - 2⁵ = 894278621 is a prime.

It is a super-2 number, since 2×894278653² = 1599468618422988818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 894278653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894278683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447139326 + 447139327.

It is an arithmetic number, because the mean of its divisors is an integer number (447139327).

Almost surely, 2^894278653 is an apocalyptic number.

It is an amenable number.

894278653 is a deficient number, since it is larger than the sum of its proper divisors (1).

894278653 is an equidigital number, since it uses as much as digits as its factorization.

894278653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The square root of 894278653 is about 29904.4921876296. The cubic root of 894278653 is about 963.4391451429.

The spelling of 894278653 in words is "eight hundred ninety-four million, two hundred seventy-eight thousand, six hundred fifty-three".