546491657 has 2 divisors, whose sum is σ = 546491658. Its totient is φ = 546491656.

The previous prime is 546491641. The next prime is 546491681. The reversal of 546491657 is 756194645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503733136 + 42758521 = 22444^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 546491657 - 2⁴ = 546491641 is a prime.

It is a super-3 number, since 3×546491657³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (546491557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273245828 + 273245829.

It is an arithmetic number, because the mean of its divisors is an integer number (273245829).

Almost surely, 2^546491657 is an apocalyptic number.

It is an amenable number.

546491657 is a deficient number, since it is larger than the sum of its proper divisors (1).

546491657 is an equidigital number, since it uses as much as digits as its factorization.

546491657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 546491657 is about 23377.1610124070. The cubic root of 546491657 is about 817.5754562552.

The spelling of 546491657 in words is "five hundred forty-six million, four hundred ninety-one thousand, six hundred fifty-seven".