387028785 has 96 divisors (see below), whose sum is σ = 750758400. Its totient is φ = 169044480.

The previous prime is 387028771. The next prime is 387028907. The reversal of 387028785 is 587820783.

It is not a de Polignac number, because 387028785 - 2⁵ = 387028753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1108791 + ... + 1109139.

It is an arithmetic number, because the mean of its divisors is an integer number (7820400).

Almost surely, 2^387028785 is an apocalyptic number.

It is an amenable number.

387028785 is a deficient number, since it is larger than the sum of its proper divisors (363729615).

387028785 is a wasteful number, since it uses less digits than its factorization.

387028785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 387028785 is about 19673.0471711934. The cubic root of 387028785 is about 728.7542304252.

The spelling of 387028785 in words is "three hundred eighty-seven million, twenty-eight thousand, seven hundred eighty-five".