384769457 has 2 divisors, whose sum is σ = 384769458. Its totient is φ = 384769456.

The previous prime is 384769433. The next prime is 384769471. The reversal of 384769457 is 754967483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296390656 + 88378801 = 17216^2 + 9401^2 .

It is a cyclic number.

It is not a de Polignac number, because 384769457 - 2⁶ = 384769393 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 384769399 and 384769408.

It is not a weakly prime, because it can be changed into another prime (384769757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192384728 + 192384729.

It is an arithmetic number, because the mean of its divisors is an integer number (192384729).

Almost surely, 2^384769457 is an apocalyptic number.

It is an amenable number.

384769457 is a deficient number, since it is larger than the sum of its proper divisors (1).

384769457 is an equidigital number, since it uses as much as digits as its factorization.

384769457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 53.

The square root of 384769457 is about 19615.5412109888. The cubic root of 384769457 is about 727.3333980006. Note that the first 4 decimals are identical.

The spelling of 384769457 in words is "three hundred eighty-four million, seven hundred sixty-nine thousand, four hundred fifty-seven".