383955705 has 48 divisors (see below), whose sum is σ = 800641920. Its totient is φ = 166281984.

The previous prime is 383955683. The next prime is 383955707. The reversal of 383955705 is 507559383.

It is not a de Polignac number, because 383955705 - 2⁸ = 383955449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (383955707) 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 47 ways as a sum of consecutive naturals, for example, 26092 + ... + 38061.

It is an arithmetic number, because the mean of its divisors is an integer number (16680040).

Almost surely, 2^383955705 is an apocalyptic number.

383955705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

383955705 is an abundant number, since it is smaller than the sum of its proper divisors (416686215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

383955705 is a wasteful number, since it uses less digits than its factorization.

383955705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64190 (or 64187 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 383955705 is about 19594.7876997940. The cubic root of 383955705 is about 726.8202883649.

It can be divided in two parts, 38395 and 5705, that added together give a square (44100 = 210²).

The spelling of 383955705 in words is "three hundred eighty-three million, nine hundred fifty-five thousand, seven hundred five".