5405489 has 4 divisors (see below), whose sum is σ = 5421156. Its totient is φ = 5389824.

The previous prime is 5405479. The next prime is 5405503. The reversal of 5405489 is 9845045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 640000 + 4765489 = 800^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405489 - 2⁸ = 5405233 is a prime.

It is a super-2 number, since 2×5405489² = 58438622658242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5405459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7304 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (1355289).

Almost surely, 2^5405489 is an apocalyptic number.

It is an amenable number.

5405489 is a deficient number, since it is larger than the sum of its proper divisors (15667).

5405489 is a wasteful number, since it uses less digits than its factorization.

5405489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15666.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 5405489 is about 2324.9707525042. The cubic root of 5405489 is about 175.5004883605.

The spelling of 5405489 in words is "five million, four hundred five thousand, four hundred eighty-nine".