387247873 has 16 divisors (see below), whose sum is σ = 417726720. Its totient is φ = 357887376.

The previous prime is 387247867. The next prime is 387247901. The reversal of 387247873 is 378742783.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 387247873 - 2⁹ = 387247361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387247813) 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, 134790 + ... + 137632.

It is an arithmetic number, because the mean of its divisors is an integer number (26107920).

Almost surely, 2^387247873 is an apocalyptic number.

It is an amenable number.

387247873 is a deficient number, since it is larger than the sum of its proper divisors (30478847).

387247873 is a wasteful number, since it uses less digits than its factorization.

387247873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its digits is 1580544, while the sum is 49.

The square root of 387247873 is about 19678.6146107901. The cubic root of 387247873 is about 728.8917147637.

The spelling of 387247873 in words is "three hundred eighty-seven million, two hundred forty-seven thousand, eight hundred seventy-three".