546643385 has 8 divisors (see below), whose sum is σ = 660151176. Its totient is φ = 434528640.

The previous prime is 546643379. The next prime is 546643441. The reversal of 546643385 is 583346645.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 88811776 + 457831609 = 9424^2 + 21397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 546643385 - 2²⁸ = 278207929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347396 + ... + 348965.

It is an arithmetic number, because the mean of its divisors is an integer number (82518897).

Almost surely, 2^546643385 is an apocalyptic number.

It is an amenable number.

546643385 is a deficient number, since it is larger than the sum of its proper divisors (113507791).

546643385 is a wasteful number, since it uses less digits than its factorization.

546643385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696523.

The product of its digits is 1036800, while the sum is 44.

The square root of 546643385 is about 23380.4060058845. The cubic root of 546643385 is about 817.6511131652.

The spelling of 546643385 in words is "five hundred forty-six million, six hundred forty-three thousand, three hundred eighty-five".