384772765 has 8 divisors (see below), whose sum is σ = 497244888. Its totient is φ = 284139840.

The previous prime is 384772763. The next prime is 384772799. The reversal of 384772765 is 567277483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 384238404 = 731^2 + 19602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 384772765 - 2¹ = 384772763 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384772763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959726 + ... + 2959855.

It is an arithmetic number, because the mean of its divisors is an integer number (62155611).

Almost surely, 2^384772765 is an apocalyptic number.

It is an amenable number.

384772765 is a deficient number, since it is larger than the sum of its proper divisors (112472123).

384772765 is a wasteful number, since it uses less digits than its factorization.

384772765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919599.

The product of its digits is 1975680, while the sum is 49.

The square root of 384772765 is about 19615.6255317030. The cubic root of 384772765 is about 727.3354823760.

The spelling of 384772765 in words is "three hundred eighty-four million, seven hundred seventy-two thousand, seven hundred sixty-five".