387651378 has 8 divisors (see below), whose sum is σ = 775302768. Its totient is φ = 129217124.

The previous prime is 387651377. The next prime is 387651379. The reversal of 387651378 is 873156783.

It is an interprime number because it is at equal distance from previous prime (387651377) and next prime (387651379).

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

387651378 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (387651377) 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, 32304276 + ... + 32304287.

It is an arithmetic number, because the mean of its divisors is an integer number (96912846).

Almost surely, 2^387651378 is an apocalyptic number.

387651378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

387651378 is a wasteful number, since it uses less digits than its factorization.

387651378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64608568.

The product of its digits is 846720, while the sum is 48.

The square root of 387651378 is about 19688.8643146323. The cubic root of 387651378 is about 729.1447907030.

The spelling of 387651378 in words is "three hundred eighty-seven million, six hundred fifty-one thousand, three hundred seventy-eight".