546909987 has 16 divisors (see below), whose sum is σ = 806533280. Its totient is φ = 327462912.

The previous prime is 546909931. The next prime is 546909997. The reversal of 546909987 is 789909645.

It is not a de Polignac number, because 546909987 - 2⁸ = 546909731 is a prime.

It is a super-2 number, since 2×546909987² = 598221067760680338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546909997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188062 + ... + 190947.

It is an arithmetic number, because the mean of its divisors is an integer number (50408330).

Almost surely, 2^546909987 is an apocalyptic number.

546909987 is a deficient number, since it is larger than the sum of its proper divisors (259623293).

546909987 is a wasteful number, since it uses less digits than its factorization.

546909987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379062.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 546909987 is about 23386.1067088988. The cubic root of 546909987 is about 817.7840163824.

The spelling of 546909987 in words is "five hundred forty-six million, nine hundred nine thousand, nine hundred eighty-seven".