546746721 has 16 divisors (see below), whose sum is σ = 764855808. Its totient is φ = 346953600.

The previous prime is 546746699. The next prime is 546746747. The reversal of 546746721 is 127647645.

It is not a de Polignac number, because 546746721 - 2²³ = 538358113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (546741721) 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, 42516 + ... + 53861.

It is an arithmetic number, because the mean of its divisors is an integer number (47803488).

Almost surely, 2^546746721 is an apocalyptic number.

It is an amenable number.

546746721 is a deficient number, since it is larger than the sum of its proper divisors (218109087).

546746721 is a wasteful number, since it uses less digits than its factorization.

546746721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96472.

The product of its digits is 282240, while the sum is 42.

The square root of 546746721 is about 23382.6157860920. The cubic root of 546746721 is about 817.7026321104.

The spelling of 546746721 in words is "five hundred forty-six million, seven hundred forty-six thousand, seven hundred twenty-one".