385906707 has 32 divisors (see below), whose sum is σ = 599731200. Its totient is φ = 244962144.

The previous prime is 385906699. The next prime is 385906709. The reversal of 385906707 is 707609583.

It is a happy number.

It is not a de Polignac number, because 385906707 - 2³ = 385906699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385906709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42844 + ... + 51062.

It is an arithmetic number, because the mean of its divisors is an integer number (18741600).

Almost surely, 2^385906707 is an apocalyptic number.

385906707 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

385906707 is a deficient number, since it is larger than the sum of its proper divisors (213824493).

385906707 is a wasteful number, since it uses less digits than its factorization.

385906707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 385906707 is about 19644.5083165754. The cubic root of 385906707 is about 728.0492780263.

The spelling of 385906707 in words is "three hundred eighty-five million, nine hundred six thousand, seven hundred seven".