388469847 has 8 divisors (see below), whose sum is σ = 519157744. Its totient is φ = 258380928.

The previous prime is 388469843. The next prime is 388469857. The reversal of 388469847 is 748964883.

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

It is not a de Polignac number, because 388469847 - 2² = 388469843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388469843) 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, 148228 + ... + 150825.

It is an arithmetic number, because the mean of its divisors is an integer number (64894718).

Almost surely, 2^388469847 is an apocalyptic number.

388469847 is a deficient number, since it is larger than the sum of its proper divisors (130687897).

388469847 is a wasteful number, since it uses less digits than its factorization.

388469847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299489.

The product of its digits is 9289728, while the sum is 57.

The square root of 388469847 is about 19709.6384289515. The cubic root of 388469847 is about 729.6575907147.

The spelling of 388469847 in words is "three hundred eighty-eight million, four hundred sixty-nine thousand, eight hundred forty-seven".