385894291 has 2 divisors, whose sum is σ = 385894292. Its totient is φ = 385894290.

The previous prime is 385894283. The next prime is 385894297. The reversal of 385894291 is 192498583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385894291 - 2³ = 385894283 is a prime.

It is not a weakly prime, because it can be changed into another prime (385894297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192947145 + 192947146.

It is an arithmetic number, because the mean of its divisors is an integer number (192947146).

Almost surely, 2^385894291 is an apocalyptic number.

385894291 is a deficient number, since it is larger than the sum of its proper divisors (1).

385894291 is an equidigital number, since it uses as much as digits as its factorization.

385894291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The square root of 385894291 is about 19644.1922969615. The cubic root of 385894291 is about 728.0414699588.

The spelling of 385894291 in words is "three hundred eighty-five million, eight hundred ninety-four thousand, two hundred ninety-one".