387398648 has 32 divisors (see below), whose sum is σ = 893998560. Its totient is φ = 153256320.

The previous prime is 387398647. The next prime is 387398651. The reversal of 387398648 is 846893783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 387398593 and 387398602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387398647) 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, 265343 + ... + 266798.

It is an arithmetic number, because the mean of its divisors is an integer number (27937455).

Almost surely, 2^387398648 is an apocalyptic number.

It is an amenable number.

387398648 is an abundant number, since it is smaller than the sum of its proper divisors (506599912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387398648 is a wasteful number, since it uses less digits than its factorization.

387398648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532167 (or 532163 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The square root of 387398648 is about 19682.4451733010. The cubic root of 387398648 is about 728.9863005110.

The spelling of 387398648 in words is "three hundred eighty-seven million, three hundred ninety-eight thousand, six hundred forty-eight".