387341761 has 3 divisors (see below), whose sum is σ = 387361443. Its totient is φ = 387322080.

The previous prime is 387341749. The next prime is 387341783. The reversal of 387341761 is 167143783.

The square root of 387341761 is 19681.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 167143783 = 23 ⋅7267121.

It can be written as a sum of positive squares in only one way, i.e., 380991361 + 6350400 = 19519^2 + 2520^2 .

It is not a de Polignac number, because 387341761 - 2²³ = 378953153 is a prime.

It is a super-2 number, since 2×387341761² = 300067279629162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387341701) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9841 + ... + 29521.

It is an arithmetic number, because the mean of its divisors is an integer number (129120481).

Almost surely, 2^387341761 is an apocalyptic number.

387341761 is the 19681-st square number.

387341761 is the 9841-st centered octagonal number.

It is an amenable number.

387341761 is a deficient number, since it is larger than the sum of its proper divisors (19682).

387341761 is an frugal number, since it uses more digits than its factorization.

387341761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39362 (or 19681 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The cubic root of 387341761 is about 728.9506164476.

The spelling of 387341761 in words is "three hundred eighty-seven million, three hundred forty-one thousand, seven hundred sixty-one".