387483813 has 12 divisors (see below), whose sum is σ = 563786028. Its totient is φ = 256436160.

The previous prime is 387483809. The next prime is 387483821. The reversal of 387483813 is 318384783.

It can be written as a sum of positive squares in 2 ways, for example, as 172186884 + 215296929 = 13122^2 + 14673^2 .

It is not a de Polignac number, because 387483813 - 2² = 387483809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387481813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155898 + ... + 158363.

It is an arithmetic number, because the mean of its divisors is an integer number (46982169).

Almost surely, 2^387483813 is an apocalyptic number.

It is an amenable number.

387483813 is a deficient number, since it is larger than the sum of its proper divisors (176302215).

387483813 is a wasteful number, since it uses less digits than its factorization.

387483813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314404 (or 314401 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 387483813 is about 19684.6085305246. The cubic root of 387483813 is about 729.0397162621.

The spelling of 387483813 in words is "three hundred eighty-seven million, four hundred eighty-three thousand, eight hundred thirteen".