547404 has 72 divisors (see below), whose sum is σ = 1564080. Its totient is φ = 147840.

The previous prime is 547399. The next prime is 547411. The reversal of 547404 is 404745.

It is a super-2 number, since 2×547404² = 599302278432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18862 + ... + 18890.

2⁵⁴⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 547404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782040).

547404 is an abundant number, since it is smaller than the sum of its proper divisors (1016676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

547404 is a wasteful number, since it uses less digits than its factorization.

547404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 547404 is about 739.8675557152. The cubic root of 547404 is about 81.8030171670.

The spelling of 547404 in words is "five hundred forty-seven thousand, four hundred four".