388275697 has 4 divisors (see below), whose sum is σ = 408711280. Its totient is φ = 367840116.

The previous prime is 388275677. The next prime is 388275707. The reversal of 388275697 is 796572883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 388275697 - 2¹⁵ = 388242929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388275647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10217763 + ... + 10217800.

It is an arithmetic number, because the mean of its divisors is an integer number (102177820).

Almost surely, 2^388275697 is an apocalyptic number.

It is an amenable number.

388275697 is a deficient number, since it is larger than the sum of its proper divisors (20435583).

388275697 is a wasteful number, since it uses less digits than its factorization.

388275697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435582.

The product of its digits is 5080320, while the sum is 55.

The square root of 388275697 is about 19704.7125581674. The cubic root of 388275697 is about 729.5360140303.

The spelling of 388275697 in words is "three hundred eighty-eight million, two hundred seventy-five thousand, six hundred ninety-seven".