387028501 has 2 divisors, whose sum is σ = 387028502. Its totient is φ = 387028500.

The previous prime is 387028391. The next prime is 387028513. The reversal of 387028501 is 105820783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385140625 + 1887876 = 19625^2 + 1374^2 .

It is an emirp because it is prime and its reverse (105820783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 387028501 - 2⁷ = 387028373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387028531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193514250 + 193514251.

It is an arithmetic number, because the mean of its divisors is an integer number (193514251).

Almost surely, 2^387028501 is an apocalyptic number.

It is an amenable number.

387028501 is a deficient number, since it is larger than the sum of its proper divisors (1).

387028501 is an equidigital number, since it uses as much as digits as its factorization.

387028501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 387028501 is about 19673.0399531948. The cubic root of 387028501 is about 728.7540521729.

The spelling of 387028501 in words is "three hundred eighty-seven million, twenty-eight thousand, five hundred one".