385731797 has 16 divisors (see below), whose sum is σ = 429176832. Its totient is φ = 343735920.

The previous prime is 385731767. The next prime is 385731803. The reversal of 385731797 is 797137583.

It is not a de Polignac number, because 385731797 - 2¹⁰ = 385730773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385731737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163178 + ... + 165524.

It is an arithmetic number, because the mean of its divisors is an integer number (26823552).

Almost surely, 2^385731797 is an apocalyptic number.

It is an amenable number.

385731797 is a deficient number, since it is larger than the sum of its proper divisors (43445035).

385731797 is a wasteful number, since it uses less digits than its factorization.

385731797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648.

The product of its digits is 1111320, while the sum is 50.

The square root of 385731797 is about 19640.0559316923. The cubic root of 385731797 is about 727.9392666851.

The spelling of 385731797 in words is "three hundred eighty-five million, seven hundred thirty-one thousand, seven hundred ninety-seven".