385203487 has 4 divisors (see below), whose sum is σ = 394598736. Its totient is φ = 375808240.

The previous prime is 385203479. The next prime is 385203509. The reversal of 385203487 is 784302583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385203487 - 2³ = 385203479 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385203437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697563 + ... + 4697644.

It is an arithmetic number, because the mean of its divisors is an integer number (98649684).

Almost surely, 2^385203487 is an apocalyptic number.

385203487 is a deficient number, since it is larger than the sum of its proper divisors (9395249).

385203487 is an equidigital number, since it uses as much as digits as its factorization.

385203487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395248.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 385203487 is about 19626.6015142714. The cubic root of 385203487 is about 727.6067789245.

The spelling of 385203487 in words is "three hundred eighty-five million, two hundred three thousand, four hundred eighty-seven".