388887267 has 8 divisors (see below), whose sum is σ = 519381520. Its totient is φ = 258825600.

The previous prime is 388887263. The next prime is 388887271. The reversal of 388887267 is 762788883.

It is an interprime number because it is at equal distance from previous prime (388887263) and next prime (388887271).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388887267 - 2² = 388887263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388887263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106042 + ... + 109647.

It is an arithmetic number, because the mean of its divisors is an integer number (64922690).

Almost surely, 2^388887267 is an apocalyptic number.

388887267 is a deficient number, since it is larger than the sum of its proper divisors (130494253).

388887267 is a wasteful number, since it uses less digits than its factorization.

388887267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216293.

The product of its digits is 7225344, while the sum is 57.

The square root of 388887267 is about 19720.2248212337. The cubic root of 388887267 is about 729.9188419189.

The spelling of 388887267 in words is "three hundred eighty-eight million, eight hundred eighty-seven thousand, two hundred sixty-seven".