387028485 has 12 divisors (see below), whose sum is σ = 670849452. Its totient is φ = 206415168.

The previous prime is 387028391. The next prime is 387028501. The reversal of 387028485 is 584820783.

It can be written as a sum of positive squares in 2 ways, for example, as 58476609 + 328551876 = 7647^2 + 18126^2 .

It is a de Polignac number, because none of the positive numbers 2^k-387028485 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8600633 = 387028485 / (3 + 8 + 7 + 0 + 2 + 8 + 4 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 387028485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4300272 + ... + 4300361.

It is an arithmetic number, because the mean of its divisors is an integer number (55904121).

Almost surely, 2^387028485 is an apocalyptic number.

It is an amenable number.

387028485 is a deficient number, since it is larger than the sum of its proper divisors (283820967).

387028485 is a wasteful number, since it uses less digits than its factorization.

387028485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8600644 (or 8600641 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 387028485 is about 19673.0395465469. The cubic root of 387028485 is about 728.7540421306.

The spelling of 387028485 in words is "three hundred eighty-seven million, twenty-eight thousand, four hundred eighty-five".