385571211 has 16 divisors (see below), whose sum is σ = 548981760. Its totient is φ = 240176160.

The previous prime is 385571209. The next prime is 385571213. The reversal of 385571211 is 112175583.

It is an interprime number because it is at equal distance from previous prime (385571209) and next prime (385571213).

It is not a de Polignac number, because 385571211 - 2¹ = 385571209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385571213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68785 + ... + 74178.

It is an arithmetic number, because the mean of its divisors is an integer number (34311360).

Almost surely, 2^385571211 is an apocalyptic number.

385571211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

385571211 is a deficient number, since it is larger than the sum of its proper divisors (163410549).

385571211 is a wasteful number, since it uses less digits than its factorization.

385571211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143026.

The product of its digits is 8400, while the sum is 33.

The square root of 385571211 is about 19635.9672794594. The cubic root of 385571211 is about 727.8382352761.

The spelling of 385571211 in words is "three hundred eighty-five million, five hundred seventy-one thousand, two hundred eleven".