386473391 has 2 divisors, whose sum is σ = 386473392. Its totient is φ = 386473390.

The previous prime is 386473363. The next prime is 386473441. The reversal of 386473391 is 193374683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 386473391 - 2¹⁰ = 386472367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386473361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193236695 + 193236696.

It is an arithmetic number, because the mean of its divisors is an integer number (193236696).

Almost surely, 2^386473391 is an apocalyptic number.

386473391 is a deficient number, since it is larger than the sum of its proper divisors (1).

386473391 is an equidigital number, since it uses as much as digits as its factorization.

386473391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 386473391 is about 19658.9264966325. The cubic root of 386473391 is about 728.4054712775.

The spelling of 386473391 in words is "three hundred eighty-six million, four hundred seventy-three thousand, three hundred ninety-one".