385620653 has 4 divisors (see below), whose sum is σ = 420677088. Its totient is φ = 350564220.

The previous prime is 385620647. The next prime is 385620659. The reversal of 385620653 is 356026583.

It is a happy number.

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: 356026583 = 11 ⋅32366053.

It is an interprime number because it is at equal distance from previous prime (385620647) and next prime (385620659).

It is a cyclic number.

It is not a de Polignac number, because 385620653 - 2¹⁸ = 385358509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385620659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17528201 + ... + 17528222.

It is an arithmetic number, because the mean of its divisors is an integer number (105169272).

Almost surely, 2^385620653 is an apocalyptic number.

It is an amenable number.

385620653 is a deficient number, since it is larger than the sum of its proper divisors (35056435).

385620653 is a wasteful number, since it uses less digits than its factorization.

385620653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35056434.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 385620653 is about 19637.2262043294. The cubic root of 385620653 is about 727.8693443068.

The spelling of 385620653 in words is "three hundred eighty-five million, six hundred twenty thousand, six hundred fifty-three".