387015849 has 12 divisors (see below), whose sum is σ = 609843312. Its totient is φ = 234555000.

The previous prime is 387015823. The next prime is 387015857. The reversal of 387015849 is 948510783.

It is not a de Polignac number, because 387015849 - 2¹² = 387011753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387015859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1954527 + ... + 1954724.

It is an arithmetic number, because the mean of its divisors is an integer number (50820276).

Almost surely, 2^387015849 is an apocalyptic number.

It is an amenable number.

387015849 is a deficient number, since it is larger than the sum of its proper divisors (222827463).

387015849 is a wasteful number, since it uses less digits than its factorization.

387015849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909268 (or 3909265 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 387015849 is about 19672.7183937553. The cubic root of 387015849 is about 728.7461110724.

The spelling of 387015849 in words is "three hundred eighty-seven million, fifteen thousand, eight hundred forty-nine".