894251381 has 2 divisors, whose sum is σ = 894251382. Its totient is φ = 894251380.

The previous prime is 894251317. The next prime is 894251401. The reversal of 894251381 is 183152498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 844774225 + 49477156 = 29065^2 + 7034^2 .

It is a cyclic number.

It is not a de Polignac number, because 894251381 - 2⁶ = 894251317 is a prime.

It is a super-2 number, since 2×894251381² = 1599371064840814322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894251581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447125690 + 447125691.

It is an arithmetic number, because the mean of its divisors is an integer number (447125691).

Almost surely, 2^894251381 is an apocalyptic number.

It is an amenable number.

894251381 is a deficient number, since it is larger than the sum of its proper divisors (1).

894251381 is an equidigital number, since it uses as much as digits as its factorization.

894251381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 894251381 is about 29904.0361991488. The cubic root of 894251381 is about 963.4293513352.

The spelling of 894251381 in words is "eight hundred ninety-four million, two hundred fifty-one thousand, three hundred eighty-one".