547430409 has 12 divisors (see below), whose sum is σ = 803696452. Its totient is φ = 358970400.

The previous prime is 547430407. The next prime is 547430437. The reversal of 547430409 is 904034745.

It can be written as a sum of positive squares in 2 ways, for example, as 162486009 + 384944400 = 12747^2 + 19620^2 .

It is not a de Polignac number, because 547430409 - 2¹ = 547430407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547430407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498022 + ... + 499119.

Almost surely, 2^547430409 is an apocalyptic number.

It is an amenable number.

547430409 is a deficient number, since it is larger than the sum of its proper divisors (256266043).

547430409 is a wasteful number, since it uses less digits than its factorization.

547430409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997208 (or 997205 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 547430409 is about 23397.2307976820. The cubic root of 547430409 is about 818.0433264952.

The spelling of 547430409 in words is "five hundred forty-seven million, four hundred thirty thousand, four hundred nine".