385971707 has 8 divisors (see below), whose sum is σ = 421496832. Its totient is φ = 350519400.

The previous prime is 385971683. The next prime is 385971709. The reversal of 385971707 is 707179583.

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

It is not a de Polignac number, because 385971707 - 2¹² = 385967611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385971709) 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 7 ways as a sum of consecutive naturals, for example, 6803 + ... + 28604.

It is an arithmetic number, because the mean of its divisors is an integer number (52687104).

Almost surely, 2^385971707 is an apocalyptic number.

385971707 is a deficient number, since it is larger than the sum of its proper divisors (35525125).

385971707 is a wasteful number, since it uses less digits than its factorization.

385971707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36409.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 385971707 is about 19646.1626533020. The cubic root of 385971707 is about 728.0901519348.

It can be divided in two parts, 38597 and 1707, that added together give a palindrome (40304).

The spelling of 385971707 in words is "three hundred eighty-five million, nine hundred seventy-one thousand, seven hundred seven".