387113497 has 4 divisors (see below), whose sum is σ = 387221796. Its totient is φ = 387005200.

The previous prime is 387113491. The next prime is 387113501. The reversal of 387113497 is 794311783.

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 139334416 + 247779081 = 11804^2 + 15741^2 .

It is a cyclic number.

It is not a de Polignac number, because 387113497 - 2⁷ = 387113369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387113491) 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 in 3 ways as a sum of consecutive naturals, for example, 48598 + ... + 55999.

It is an arithmetic number, because the mean of its divisors is an integer number (96805449).

Almost surely, 2^387113497 is an apocalyptic number.

It is an amenable number.

387113497 is a deficient number, since it is larger than the sum of its proper divisors (108299).

387113497 is a wasteful number, since it uses less digits than its factorization.

387113497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108298.

The product of its digits is 127008, while the sum is 43.

The square root of 387113497 is about 19675.2000498089. The cubic root of 387113497 is about 728.8073959150.

The spelling of 387113497 in words is "three hundred eighty-seven million, one hundred thirteen thousand, four hundred ninety-seven".