387550001 has 4 divisors (see below), whose sum is σ = 387968100. Its totient is φ = 387131904.

The previous prime is 387549989. The next prime is 387550057. The reversal of 387550001 is 100055783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168480400 + 219069601 = 12980^2 + 14801^2 .

It is a cyclic number.

It is not a de Polignac number, because 387550001 - 2¹⁴ = 387533617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387550091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207656 + ... + 209513.

It is an arithmetic number, because the mean of its divisors is an integer number (96992025).

Almost surely, 2^387550001 is an apocalyptic number.

It is an amenable number.

387550001 is a deficient number, since it is larger than the sum of its proper divisors (418099).

387550001 is an equidigital number, since it uses as much as digits as its factorization.

387550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418098.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 387550001 is about 19686.2896707328. The cubic root of 387550001 is about 729.0812241754.

The spelling of 387550001 in words is "three hundred eighty-seven million, five hundred fifty thousand, one".