387575667 has 6 divisors (see below), whose sum is σ = 559831532. Its totient is φ = 258383772.

The previous prime is 387575663. The next prime is 387575689. The reversal of 387575667 is 766575783.

387575667 is a `hidden beast` number, since 3 + 8 + 7 + 575 + 6 + 67 = 666.

It is not a de Polignac number, because 387575667 - 2² = 387575663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387575663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21531973 + ... + 21531990.

Almost surely, 2^387575667 is an apocalyptic number.

387575667 is a deficient number, since it is larger than the sum of its proper divisors (172255865).

387575667 is a wasteful number, since it uses less digits than its factorization.

387575667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43063969 (or 43063966 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 54.

The square root of 387575667 is about 19686.9415349363. The cubic root of 387575667 is about 729.0973186024.

The spelling of 387575667 in words is "three hundred eighty-seven million, five hundred seventy-five thousand, six hundred sixty-seven".