387776125 has 16 divisors (see below), whose sum is σ = 527941440. Its totient is φ = 282018000.

The previous prime is 387776119. The next prime is 387776131. The reversal of 387776125 is 521677783.

It is an interprime number because it is at equal distance from previous prime (387776119) and next prime (387776131).

It is not a de Polignac number, because 387776125 - 2⁵ = 387776093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139635 + ... + 142384.

It is an arithmetic number, because the mean of its divisors is an integer number (32996340).

Almost surely, 2^387776125 is an apocalyptic number.

It is an amenable number.

387776125 is a deficient number, since it is larger than the sum of its proper divisors (140165315).

387776125 is a wasteful number, since it uses less digits than its factorization.

387776125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282045 (or 282035 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The square root of 387776125 is about 19692.0320180524. The cubic root of 387776125 is about 729.2229957391. Note that the first 3 decimals are identical.

The spelling of 387776125 in words is "three hundred eighty-seven million, seven hundred seventy-six thousand, one hundred twenty-five".