385916501 has 4 divisors (see below), whose sum is σ = 390801600. Its totient is φ = 381031404.

The previous prime is 385916423. The next prime is 385916513. The reversal of 385916501 is 105619583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385916501 - 2²⁶ = 318807637 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 (385916101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442431 + ... + 2442588.

It is an arithmetic number, because the mean of its divisors is an integer number (97700400).

Almost surely, 2^385916501 is an apocalyptic number.

It is an amenable number.

385916501 is a deficient number, since it is larger than the sum of its proper divisors (4885099).

385916501 is an equidigital number, since it uses as much as digits as its factorization.

385916501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885098.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 385916501 is about 19644.7575958575. The cubic root of 385916501 is about 728.0554370747.

The spelling of 385916501 in words is "three hundred eighty-five million, nine hundred sixteen thousand, five hundred one".