838773457 has 2 divisors, whose sum is σ = 838773458. Its totient is φ = 838773456.

The previous prime is 838773413. The next prime is 838773491. The reversal of 838773457 is 754377838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 680114241 + 158659216 = 26079^2 + 12596^2 .

It is a cyclic number.

It is not a de Polignac number, because 838773457 - 2¹⁵ = 838740689 is a prime.

It is not a weakly prime, because it can be changed into another prime (838773497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419386728 + 419386729.

It is an arithmetic number, because the mean of its divisors is an integer number (419386729).

Almost surely, 2^838773457 is an apocalyptic number.

It is an amenable number.

838773457 is a deficient number, since it is larger than the sum of its proper divisors (1).

838773457 is an equidigital number, since it uses as much as digits as its factorization.

838773457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 52.

The square root of 838773457 is about 28961.5858854449. The cubic root of 838773457 is about 943.0793299349.

The spelling of 838773457 in words is "eight hundred thirty-eight million, seven hundred seventy-three thousand, four hundred fifty-seven".