546971989 has 4 divisors (see below), whose sum is σ = 547606656. Its totient is φ = 546337324.

The previous prime is 546971969. The next prime is 546972007. The reversal of 546971989 is 989179645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 546971989 - 2¹⁹ = 546447701 is a prime.

It is a super-2 number, since 2×546971989² = 598356713501232242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546971959) 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 in 3 ways as a sum of consecutive naturals, for example, 316039 + ... + 317764.

It is an arithmetic number, because the mean of its divisors is an integer number (136901664).

Almost surely, 2^546971989 is an apocalyptic number.

It is an amenable number.

546971989 is a deficient number, since it is larger than the sum of its proper divisors (634667).

546971989 is an equidigital number, since it uses as much as digits as its factorization.

546971989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634666.

The product of its digits is 4898880, while the sum is 58.

The square root of 546971989 is about 23387.4322874487. The cubic root of 546971989 is about 817.8149186819.

The spelling of 546971989 in words is "five hundred forty-six million, nine hundred seventy-one thousand, nine hundred eighty-nine".