387378825 has 12 divisors (see below), whose sum is σ = 640466448. Its totient is φ = 206602000.

The previous prime is 387378809. The next prime is 387378833. The reversal of 387378825 is 528873783.

It is not a de Polignac number, because 387378825 - 2⁴ = 387378809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2582451 + ... + 2582600.

It is an arithmetic number, because the mean of its divisors is an integer number (53372204).

Almost surely, 2^387378825 is an apocalyptic number.

It is an amenable number.

387378825 is a deficient number, since it is larger than the sum of its proper divisors (253087623).

387378825 is a wasteful number, since it uses less digits than its factorization.

387378825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165064 (or 5165059 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 387378825 is about 19681.9415962958. The cubic root of 387378825 is about 728.9738663410.

The spelling of 387378825 in words is "three hundred eighty-seven million, three hundred seventy-eight thousand, eight hundred twenty-five".