387528628 has 6 divisors (see below), whose sum is σ = 678175106. Its totient is φ = 193764312.

The previous prime is 387528623. The next prime is 387528643. The reversal of 387528628 is 826825783.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 372567204 + 14961424 = 19302^2 + 3868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387528623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48441075 + ... + 48441082.

Almost surely, 2^387528628 is an apocalyptic number.

It is an amenable number.

387528628 is a deficient number, since it is larger than the sum of its proper divisors (290646478).

387528628 is a wasteful number, since it uses less digits than its factorization.

387528628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96882161 (or 96882159 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 387528628 is about 19685.7468235269. The cubic root of 387528628 is about 729.0678212258.

The spelling of 387528628 in words is "three hundred eighty-seven million, five hundred twenty-eight thousand, six hundred twenty-eight".