5775621 has 8 divisors (see below), whose sum is σ = 7712544. Its totient is φ = 3844560.

The previous prime is 5775617. The next prime is 5775661. The reversal of 5775621 is 1265775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5775621 - 2² = 5775617 is a prime.

It is a d-powerful number, because it can be written as 5 + 7⁴ + 7⁸ + 5 + 6³ + 2¹³ + 1 .

5775621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5775661) 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 7 ways as a sum of consecutive naturals, for example, 2026 + ... + 3956.

It is an arithmetic number, because the mean of its divisors is an integer number (964068).

Almost surely, 2^5775621 is an apocalyptic number.

It is an amenable number.

5775621 is a deficient number, since it is larger than the sum of its proper divisors (1936923).

5775621 is a wasteful number, since it uses less digits than its factorization.

5775621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931.

The product of its digits is 14700, while the sum is 33.

The square root of 5775621 is about 2403.2521715376. The cubic root of 5775621 is about 179.4180899446.

The spelling of 5775621 in words is "five million, seven hundred seventy-five thousand, six hundred twenty-one".