385900061 has 4 divisors (see below), whose sum is σ = 392440800. Its totient is φ = 379359324.

The previous prime is 385900027. The next prime is 385900063. The reversal of 385900061 is 160009583.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160009583 = 19 ⋅8421557.

It is a cyclic number.

It is not a de Polignac number, because 385900061 - 2²² = 381705757 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 (385900063) 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, 3270281 + ... + 3270398.

It is an arithmetic number, because the mean of its divisors is an integer number (98110200).

Almost surely, 2^385900061 is an apocalyptic number.

It is an amenable number.

385900061 is a deficient number, since it is larger than the sum of its proper divisors (6540739).

385900061 is an equidigital number, since it uses as much as digits as its factorization.

385900061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6540738.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 385900061 is about 19644.3391591573. The cubic root of 385900061 is about 728.0450985677.

The spelling of 385900061 in words is "three hundred eighty-five million, nine hundred thousand, sixty-one".