384607261 has 4 divisors (see below), whose sum is σ = 384649024. Its totient is φ = 384565500.

The previous prime is 384607259. The next prime is 384607277. The reversal of 384607261 is 162706483.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 384607261 - 2¹ = 384607259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 384607261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384607241) 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, 315 + ... + 27736.

It is an arithmetic number, because the mean of its divisors is an integer number (96162256).

Almost surely, 2^384607261 is an apocalyptic number.

It is an amenable number.

384607261 is a deficient number, since it is larger than the sum of its proper divisors (41763).

384607261 is a wasteful number, since it uses less digits than its factorization.

384607261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41762.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 384607261 is about 19611.4064003579. The cubic root of 384607261 is about 727.2311834181.

The spelling of 384607261 in words is "three hundred eighty-four million, six hundred seven thousand, two hundred sixty-one".