545783646 has 32 divisors (see below), whose sum is σ = 1120739328. Its totient is φ = 177107360.

The previous prime is 545783621. The next prime is 545783647. The reversal of 545783646 is 646387545.

It is a junction number, because it is equal to n+sod(n) for n = 545783595 and 545783604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545783647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48796 + ... + 58928.

It is an arithmetic number, because the mean of its divisors is an integer number (35023104).

Almost surely, 2^545783646 is an apocalyptic number.

545783646 is an abundant number, since it is smaller than the sum of its proper divisors (574955682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545783646 is a wasteful number, since it uses less digits than its factorization.

545783646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376.

The product of its digits is 2419200, while the sum is 48.

The square root of 545783646 is about 23362.0128841673. The cubic root of 545783646 is about 817.2222318478. Note that the first 4 decimals are identical.

The spelling of 545783646 in words is "five hundred forty-five million, seven hundred eighty-three thousand, six hundred forty-six".