387513901 has 4 divisors (see below), whose sum is σ = 387597600. Its totient is φ = 387430204.

The previous prime is 387513853. The next prime is 387513937. The reversal of 387513901 is 109315783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109315783 = 1193 ⋅91631.

It is a cyclic number.

It is not a de Polignac number, because 387513901 - 2⁷ = 387513773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387513991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34471 + ... + 44308.

It is an arithmetic number, because the mean of its divisors is an integer number (96899400).

Almost surely, 2^387513901 is an apocalyptic number.

It is an amenable number.

387513901 is a deficient number, since it is larger than the sum of its proper divisors (83699).

387513901 is an equidigital number, since it uses as much as digits as its factorization.

387513901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83698.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 387513901 is about 19685.3727676161. The cubic root of 387513901 is about 729.0585856777.

The spelling of 387513901 in words is "three hundred eighty-seven million, five hundred thirteen thousand, nine hundred one".