5408621 has 4 divisors (see below), whose sum is σ = 5436000. Its totient is φ = 5381244.

The previous prime is 5408617. The next prime is 5408639. The reversal of 5408621 is 1268045.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1268045 = 5 ⋅253609.

It is a cyclic number.

It is not a de Polignac number, because 5408621 - 2² = 5408617 is a prime.

It is a super-2 number, since 2×5408621² = 58506362243282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5408671) 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, 13391 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (1359000).

Almost surely, 2^5408621 is an apocalyptic number.

It is an amenable number.

5408621 is a deficient number, since it is larger than the sum of its proper divisors (27379).

5408621 is a wasteful number, since it uses less digits than its factorization.

5408621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27378.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5408621 is about 2325.6442118260. The cubic root of 5408621 is about 175.5343774562.

The spelling of 5408621 in words is "five million, four hundred eight thousand, six hundred twenty-one".