385272873 has 6 divisors (see below), whose sum is σ = 556505274. Its totient is φ = 256848576.

The previous prime is 385272869. The next prime is 385272893. The reversal of 385272873 is 378272583.

385272873 is a `hidden beast` number, since 38 + 527 + 28 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 268697664 + 116575209 = 16392^2 + 10797^2 .

It is not a de Polignac number, because 385272873 - 2² = 385272869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385272893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21404040 + ... + 21404057.

It is an arithmetic number, because the mean of its divisors is an integer number (92750879).

Almost surely, 2^385272873 is an apocalyptic number.

It is an amenable number.

385272873 is a deficient number, since it is larger than the sum of its proper divisors (171232401).

385272873 is a wasteful number, since it uses less digits than its factorization.

385272873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42808103 (or 42808100 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 385272873 is about 19628.3690866052. The cubic root of 385272873 is about 727.6504637947.

The spelling of 385272873 in words is "three hundred eighty-five million, two hundred seventy-two thousand, eight hundred seventy-three".