387287445 has 16 divisors (see below), whose sum is σ = 622444032. Its totient is φ = 205625280.

The previous prime is 387287437. The next prime is 387287449. The reversal of 387287445 is 544782783.

It is not a de Polignac number, because 387287445 - 2³ = 387287437 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 387287394 and 387287403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387287449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54546 + ... + 61235.

It is an arithmetic number, because the mean of its divisors is an integer number (38902752).

Almost surely, 2^387287445 is an apocalyptic number.

It is an amenable number.

387287445 is a deficient number, since it is larger than the sum of its proper divisors (235156587).

387287445 is a wasteful number, since it uses less digits than its factorization.

387287445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116012.

The product of its digits is 1505280, while the sum is 48.

The square root of 387287445 is about 19679.6200420638. The cubic root of 387287445 is about 728.9165418598.

The spelling of 387287445 in words is "three hundred eighty-seven million, two hundred eighty-seven thousand, four hundred forty-five".