894822457 has 2 divisors, whose sum is σ = 894822458. Its totient is φ = 894822456.

The previous prime is 894822437. The next prime is 894822469. The reversal of 894822457 is 754228498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 881139856 + 13682601 = 29684^2 + 3699^2 .

It is a cyclic number.

It is not a de Polignac number, because 894822457 - 2⁷ = 894822329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 894822457.

It is not a weakly prime, because it can be changed into another prime (894822437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447411228 + 447411229.

It is an arithmetic number, because the mean of its divisors is an integer number (447411229).

Almost surely, 2^894822457 is an apocalyptic number.

It is an amenable number.

894822457 is a deficient number, since it is larger than the sum of its proper divisors (1).

894822457 is an equidigital number, since it uses as much as digits as its factorization.

894822457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 894822457 is about 29913.5831521401. The cubic root of 894822457 is about 963.6343922274.

The spelling of 894822457 in words is "eight hundred ninety-four million, eight hundred twenty-two thousand, four hundred fifty-seven".