387390825 has 36 divisors (see below), whose sum is σ = 700388208. Its totient is φ = 204664800.

The previous prime is 387390823. The next prime is 387390859. The reversal of 387390825 is 528093783.

It is not a de Polignac number, because 387390825 - 2¹ = 387390823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (387390823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16030 + ... + 32120.

It is an arithmetic number, because the mean of its divisors is an integer number (19455228).

Almost surely, 2^387390825 is an apocalyptic number.

It is an amenable number.

387390825 is a deficient number, since it is larger than the sum of its proper divisors (312997383).

387390825 is a wasteful number, since it uses less digits than its factorization.

387390825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16214 (or 16206 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 387390825 is about 19682.2464419080. The cubic root of 387390825 is about 728.9813935086.

The spelling of 387390825 in words is "three hundred eighty-seven million, three hundred ninety thousand, eight hundred twenty-five".